Physics question and answers for May 17, 2024
- Q A ball of mass 160g is thrown up at an angle of 60 to the horizontal at a speed of 10ms . The angular momentum of the ball at the...
- Q A block A of mass m is lying on a rough horizontal surface. Another block B of mass 2m having velocity 10m/s just before collision, makes head on collision with...
- Q A block of mass 1 kg moving at a speed of 2.5 m/s collides with another block of mass 0.5 kg. If both the blocks come to rest after collision...
- Q A velocity of a 25-g bullet is 250 m/s and enters a 3.0-kg block of wood. It comes out with 150 m/s. Wooden block is at rest on frictionless surface....
- Q Suppose a fireworks shell explodes, breaking into three large pieces for which air resistance is negligible.(a). How does the explosion affect the motion of the center of mass?(b). How would...
- Q A glider with a mass of 225 grams has a velocity of 30cm/s to the right. It collides inelastically with 190g glider traveling at 55cm/s to the left. Determine their...
- Q A 0.060-kg tennis ball, moving with a speed of 5.50 m/s, has a head-on collision with a 0.090- kg ball initially moving in the same direction at a speed of...
- Q A freight car of mass 180,000 kg rolling down the track at 16 m/s collides with two identical in mass freight cars that were initially at rest. The three cars...
- Q A 27-kg child runs at 3.5 m/s and jumps onto a shopping cart, with a mass of 23 kg.Assuming the child rides on the cart after the collision, the speed...
- Q The club was in contact with a ball, initially at rest, for about 0.0014 s. If the ball has a mass of 55 g and leaves the head of the...
- Q 4) Two object again undergo a collision but totally bounce off this time. M?,with a mass of 350g traveling at 17m/s to the right, strikes a stationary mass of 400g....
- Q For this problem, five railroad cars each have a mass of 15,000 kg. Four connected railroadcars sit at rest on a track. The fifth car approaches them with a velocity...
- Q A railroad car with a mass of 14,000 kg collides and couples with a second car of mass 16,000kg that is initially at rest. The first car is moving with...
- Q Momentum:A bowling ball has a mass of 9 kg and speed of 1.1 m/s. A baseball has a mass of 0.17 kg anda speed of 38 m/s.(a) What is the...
- Q A truck with a mass of 3,000 ke traveling with a speed of 5 m/s collides at right angles with acar with a mass of 2,000 kg traveling with a...
- Q Rocket-powered sleds are used to test the human response toacceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what isthe acceleration and...
- Q A 40 lb missile moves horizontally with a velocity of 150 ft/s. It is intercepted by a laser beam, which causes it to explode into twofragments A and B, which...
- Q A block of mass m = 4.4 kg, moving on frictionless surface with a speed ?-9.2 m/s, makes a sudden perfectly elastic collision with a second block of mass M,...
- Q . (II) The CM of an empty 1250-kg car is 2.40 m behind the front of the car. How far from the frontof the car will the CM be when...
- Q Particle A has a mass of 5.40 g and particle B has a mass of 2.20 g. Particle A is located at the origin and particle B is at the...
- Q A 3.0-kilogram steel ball whose initial velocity is 10?20 meters per second and a 5.0-kilogram block of putty whose initial velocity is 30?60 meters per second slide on a frictionless...
- Q A uniform smooth sphere mass 'm' Radius 'R' is being rotated uniformly with constant angular speed 'w' on a smooth horizontal table about a vertical axis passing through end 'O'...
- Q A 4.00-gram bullet has a velocity of +600 meters per second when it hits a stationary 1.996-kilogram block of wood suspended by two ropes of negligible mass, as shown. The...
- Q A cart of mass M traveling to the right on a frictionless track with a speed 4vo collides with another cart of mass 2M traveling to the left with a...
- Q An object that has __________ units of momentum must experience 100 units of impulse in order to bring the object to a stop.A)50B)100C)25D)200
- Q Three identical cylinders each of mass M and radius R are in contact and kept on a rough horizontal surface, coefficient of friction between any cylinder and surface is. A...
- Q (b) How much kinetic energy is lost in the collision?JA railroad car of mass 2.70 x 104 kg moving 3.35 m/s collides and couples with two coupled railroad cars, each...
- Q An archer shoots an arrow toward a 300-g target that is sliding in her direction at a speed of 2.00 m/s on a smooth, slippery surface. The 22.5-g arrow is...
- Q A pitcher claims he can throw a 0.143-kg baseball with as much momentum as a 2.26-g bullet moving with a speed of 1.50 x 103 m/s.(a) What must the baseball's...
- Q Jack (mass 55.0 kg) is sliding due east with a speed of 8.00 m/s on the surface of a frozen pond. He collides with Jill (mass 48.0 kg), who is...
- Q An unstable atomic nucleus of mass 1.84 x 10^-26 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.04 x 10^-27 kg, moves in the...
- Q An athlete at the gym holds a 3.0 kg steel ball in his hand. His arm is 70 cm long and has a mass of 4.0 kg.For the steps and...
- Q You shoot a ball with mass of 0.107 kg into a ballistic pendulum. The pendulum has a mass of 0.442 kg. After the pendulum catches the ball, it swings up,...
- Q Solve the following problem. Write your answer on thespace provided. Show your complete solution.1. A bowling ball which mass is 4.0 kg is rolling at a rate of 2.5 m/s....
- Q Imagine that you are standing in a boat. If you catch a ball, you exert an impulse on that ball. If you throw the ball at the same speed, the...
- Q A bumper car with a mass of 225 kg is moving with a velocity of 18.0 km/h [W] hits a bumper car of the same mass travelling with a velocity...
- Q A cheetah, weighing 150 kg, chases a deer, weighing 30 kg, in a straight path. The speed of the cheetah is 20 m s- and that of the deer is...
- Q A cannon consists of a 200-kg cannon and a 5-kg cannonball. The cannonball begins at rest Inside the resting cannon prior to launch. After the explosion of powder, the cannonball...
- Q A 0.057 kg tennis ball and a tennis racket collide. The racket has an initial momentum of -2.80 kg-m/s and a final momentum of -1.97 kg-m/s. The ball has an...
- Q As an example, consider the case of a board of length L and negligible mass. Take the x axis to be the horizontal axis along the board and the y...
- Q A 45.00-kg girl jumps from the side of a pool into a raft (m = 0.08 kg) floating on the surface of the water. She leaves the side at a...
- Q A 10-g block slides with a velocity of 21 cm/s on a smooth level surface and makes a head-on collision with a 25 g block moving in the opposite direction...
- Q A mortar fires a shell of mass m at speed v?. The shell explodes at the top of its trajectory (shown by a star in (Figure 1)) as designed. However,...
- Q A 13-g bullet being fired at 250 m/s passes through a 4.0 cm thick foam plastic sheet. The bullet emerges with a speed of 90 m/s after a time interval...
- Q A 2.5 kg firework moving with a velocity of 5.6 m/s to the right explodes in mid-air into two pieces. One of the exploded pieces has a mass of 1.4...
- Q A bullet with a mass of 0.0098 kg and a speed of 639.4 m/s is fired so that it hits a block of wood with a mass of 0.074 kg...
- Q A 757 kg train car moving with a speed of 12.6 m/s to the right, crashes into a 2nd 1269 kg train car moving with a speed of 3.8 m/s...
- Q A bullet with a mass of 0.0063 kg and a speed of 748.0 m/s is fired so that it hits a block of wood with a mass of 0.233 kg...
- Q Two bowling balls, each with a mass of 5 kg, collide head-on. Before the collision, they are both travelling at the same speed (but with opposite velocities).a. Which of the...
- Q A locomotive of mass m is sitting on a track. A train car of mass m/2 with velocity v hits the locomotive in a totally inelastic collision. What is the...
- Q A 1000 kg truck is moving at 30 m/s and hits a 500 kg car that's moving at 15 m/s from behind. If the two cars stick together, what is...
- Q A 5 kg toy truck is moving at 5 m/s and hits another 3 kg toy car that is moving at 2 m/s from behind. If the car gets a...
- Q A cannon (m=275 kg) fires a cannonball (m= 8.00 kg), and the cannon recoils. If thecannon recoils with a speed of 1.25 m s', what is the speed of the...
- Q Two astronauts, each with a mass of 57 kg, are connected by a 6.3 m massless rope. Initially they are rotating around their center of mass with an angular velocity...
- Q A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correct?a. The total...
- Q A damselfly is circling about a poplar tree. At some moment in time, its linear momentum is given by p = (2i - 2j) g m/s and its distance from...
- Q A 4.0kg model train going right at 6.0m/s bumps into a toy wagon moving in the same direction at 2.0m/s. The model train has a final speed of 4.8m/s, and...
- Q A thin rectangular plate of mass 0.60 kg has a face of width 0.20 m and length 0.45 m. Determine the moment of inertia for the plate when it is...
- Q Can a small, light ball have the same momentum as a large, heavy ball?A. yes, because the small ball may be able to gain as much inertia as the large...
- Q A 60-kg swimmer suddenly dives horizontally from a 150-kg raft with a speed of 1.5 m/s. The raft is initially at rest. What is the speed of the raft immediately...
- Q 12. A very light ping-pong ball moving east at a speed of 4 m/s collides with a very heavy stationary bowling ball. The Ping-Pong ball bounces back to the west,...
- Q (hrw8c9p40) A space vehicle is traveling at 4200 km/h relative to the Earth when the exhausted rocket motor is disengaged and sent backward with a speed of 72 km/h relative...
- Q A tennis ball of mass 0.0591 kg is served. It strikes the ground with a velocity of 52.6 m/s (118 mi/h) at an angle of 22.8 below the horizontal, Just...
- Q Which statement must necessarily be true for the momentum of a system to be conserved?The net external force on the system is zero.The net external force on the system is...
- Q 10. A 0.050-kilogram bullet is fired from a 4.0- tien kilogram rifle that is initially at rest. If the bullet leaves the rifle with momentum having a magnitude of 20....
- Q Two identical ice hockey pucks, labeled A and B, are sliding toward each other at speed v. Which one of the following statements is true concerning their momenta and kinetic...
- Q An 825-kg cannon rests on a frictionless surface and fires a 1.12-kg projectile at 124 meters per second to the right.What is the velocity of the cannon immediately after the...
- Q A barefoot field-goal kicker imparts a speed of 19 m/s to a football initially at rest. If the football has a mass of 0.43 kg and the time of contact...
- Q 4. A 2kg object initially moving with a constant velocity is subjected to a force of magnitude F in thedirection of motion. A graph of F as a function of...
- Q A ball with a mass of 7.8 kg moving at 8 m/ s collides elastically with a second ball that is initially stationary. If the second ball moves away at...
- Q After being struck by a bowling ball, a 1.7 kg bowling pin sliding to the right at 3.2 m/s collides head-on with another 1.7 kg bowling pin initially at rest.Find...
- Q An impulse of 149 Ns is required to stop a person's head in a car collision. If the face is in contact with the steering wheel for 0.0263 s, what...
- Q What is the momentum of a two-particle system composed of a 1000 kg car moving east at 100 m/s and a second 1400 kg car moving west at 45 m/s?...
- Q A 0.200 kg air-track glider moving at 1.20 m/s bumps into a 0.600 kg glider at rest.(a) Find the total kinetic energy after collision if the collision is elastic.(b) Find...
- Q A 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. Find the momentum change of the rock caused by its fall...
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