Physics question and answers for May 17, 2024
- Q Explain why a rapidly spinning gyroscope, mounted in a frame that allows it to rotate in any direction independently of the frame's rotation, tends to maintain its axis pointed in...
- Q A round body kept on a smooth horizontal surface is pulled by a constant horizontal force applied at the topmost point of the body. Which of the following shapes can...
- Q A thread holds two carts together on a frictionless surface. A compressed spring acts on the carts. After the thread is burned, the 1.5-kg cart moves with a velocity of...
- Q A particle moving with constant speed parallel to a smooth wall over a smooth horizontal plane is acted upon by an impulse of 2 N-s perpendicular to its motion. The...
- Q A particle strikes a smooth wall, moving on a smooth horizontal plane, obliquely. The speed just after the collision becomes 1/?3 times the speed just before collision. If coefficient of...
- Q A uniform rod AB of mass 3m and length 2a has a point mass 2m attached at B. The rod is free to rotate in vertical plane about a smooth...
- Q What is the momentum of a 92 kg football player who is moving at 6.2 m/s?
- Q An investigation of an automobile crash suggests that vehicle A was moving at 52 mph toward thesouth and vehicle B was moving at an unknown speed toward the north, when...
- Q A 0.151 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.730 m/s. It has a head-on collision with a 0.309 kg...
- Q During an in-class demonstration of momentum change and impulse, Mr. H asks Jerome (102 kg) and Michael (98 kg) to sit on a large 14-kg skate cart. Mr. H asks...
- Q Cheryl (mass= 50 kg) and Jared (mass = 62 kg) occupy separate 36-kg bumper cars. Cheryl gets her car cruising at 3.6 m/s and collides head-on with Jared who is...
- Q A 6 kg object starts at rest. It is then pushed by a 10 N force for 8 seconds.A.How much initial momentum does the object have?B.Calculate the impulse that acted...
- Q A 20.-kilogram mass moving at a speed of 3.0 meters per second is stopped by a constant force of 15 newtons. How many seconds must the force act on the...
- Q A force of 10. newtons acts on an object for 0.010 second. What force, acting on the object for0.050 second, would produce the same impulse?5 Newtons5 Newtons2 Newtons20 Newtons
- Q Car C is a 1900-kg car traveling at 25 m/s. It collides with Car D, a2450-kg car moving 12 m/s in the same direction. The two carsstick together upon colliding....
- Q Ball A is 0.40 kg and it collides with Ball B of mass 0.60 kg. Ball Ainitially moves to the right with a velocity of 1.0 m/s while Ball Bmoves...
- Q 238kgkg,A uranium nucleus U may stay in one piecefor billions of years, but sooner or later it de-cays into an a particle of mass 6.64 x 107and 234Th nucleus of...
- Q Two particles A and B of mass m and one particle C of mass M are kept on the x-axis in the order ABC. Particle A is given a velocity...
- Q A stationary cannon of mass "100m" fires a cannonball of mass "m" at speed "v." What is the recoil speed of the cannon? Assume that frictional forces are negligible and...
- Q From a solid sphere of radius R a quarter of sphere is cut out as shown. The centre of mass of remaining part is at distance ?2 R from centre...
- Q A 22.6-kilogram child emerges from the end of a tall playground slide at a speed of 7.65 m/s, where she collides head-on with her 90.7-kilogram father, who is waiting at...
- Q A car moving with 30 m/s collides head on with a stationary car. The cars stick together after the collision. Bon cars have mass 1,000 kg.a) What is the speed...
- Q A ball with a mass of 0.15 kg and a velocity of 5.0 m/s strikes a wall and bounces straight back with a velocity of 3.0 m/s. What is the...
- Q A 1,227 kg car slows from 20.1 m/s to 2.3 m/s. What is its change in momentum?Round your answer to the nearest 0.1. Do not add units.
- Q A 1.06 kg plastic ball is rolling forward at 0.7 m/s. It collides with a second plastic ball of mass 2.12 kg, also rolling forward at 0.8 m/s. After the...
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