Physics question and answers for June 02, 2024
- Q You throw a ball straight up Compare the sign of the work done by gravity while the ball goes up with the sign of the work done by gravity while...
- Q A mass of 2 0 kg traveling at 3 0 m s along a smooth horizontal plane hits a relaxed spring The mass is slowed to zero velocity when the...
- Q A roller coaster car is moving at 20 m s along a straight horizontal track What will its speed be after climbing the 15 m hill shown in the figure...
- Q 9 The following situation may or may not be consistent with the principle of conservation of mechanical energy For the following examples state whether mechanical energy is conserved or not...
- Q 1 A mass of 2 kg is attached to a horizontal spring with a spring constant of 70 N m The spring is stretched from equilibrium position by 5 cm...
- Q A 48 kg child bounces on a pogo stick At the lowest point of one bounce the compressed spring in the stick has 120 J of elastic potential energy as...
- Q When the brake is applied to a car having a mass of 1500 kg its speed is reduced from 35 m s to 5 m s a How much work...
- Q A block of mass in 100 g is released from rest and slides down a frictionless track of height h 51 3 cin 4 the bottom of the track the...
- Q 2 A 3 kg ball is thrown downward at 4 m s from a height of 1 5 m a What is the kinetic energy of the ball as it...
- Q 1 A 2 kg toy car moves at a speed of 5 m s a What is the kinetic energy of the car b If a child applies a 3...
- Q 9 A mass spring system undergoes SHM The elastic potential energy at maximum stretch is 7 50 J the mass is 0 20 kg and the spring constant is 240...
- Q A block of mass 2 5 kg is sliding across a smooth level surface at 3 0 m s when it hits a stationary spring bumper fixed at one end...
- Q An ideal spring is compressed 10 cm by an applied force of 50 N This compressed spring is then used to project a 20 g marble straight up into the...
- Q Given the force field F find the work required to move an object on the given orientated curve F y x on the parabola y 5x from 0 0 to...
- Q 4 A mass spring system undergoes SHM The elastic potential energy at maximum stretch is 7 50 J the mass is 0 20 kg and the spring constant is 240...
- Q p59 A constant force of magnitude 30 N makes an angle of 150 measured counterclockwise with the direction of increasing x as the force acts on a 18 kg object...
- Q 2 A wooden box of mass 6 0 kg slides on a frictionless tabletop with a speed of 3 0 m s It is brought to rest by a compressing...
- Q 16 20 11 THINKING AND COMMUNICATION Answer using G R A S S for full marks Organize your solution neatly Marks for communication will be given for proper significant figures...
- Q First 8c8p4 In the figure a frictionless roller coaster of mass 1000 kg tops the first hill at height h 40 m with speed 6 85 m s How much...
- Q the force on a 5 00kg object as it is moved a through a displacement 22 0m A How much work is done in the following graph as an object...
- Q Bc7p26 During spring semester at MIT residents of the parallel buildings of the East Campus dorms battle one another with large catapults that are made with surgical hose mounte on...
- Q 5 3 When you crushed the chalk with a block you released the 5 kg block from a height of 1 m above the chalk a What is the gravitational...
- Q H Submit Answer Tries 0 8 A h hrw8c11p11 A homogeneous sphere starts from rest at the upper end of the track shown in the figure and rolls without slipping...
- Q 38 An adult pulls a sled forward with a force of 89 N The sled moves a distance of 37 m in 1 8 min What is the average power...
- Q 39 What is the height h of the ramp A 2 6 m BI O 11 cm O 1 5 m Smooth B Rough The diagram shows a 0 74...
- Q Calculate the torque magnitude and direction about point Q due to the force F in each of the cases sketched In each case the force F and the rod both...
- Q 33 Which unit is equivalent to the joule J the unit of work meter per second squared m s O kilogram meter kg m O kilogram meter per second kg...
- Q 32 A car s engine performs 4 80 x 105 J of work as it on accelerates from O 43 2 m s O 29 7 m s O 23...
- Q 15 km h 24 A 1200 kg car is traveling at O 96 km h 68 km h O 82 km h O 54 km h 2400 kg truck has...
- Q 18 A battery powered train travels in a complete circle of radius 1 82 m The coefficient of friction between the train and the track is 0 12 and the...
- Q All changes 16 A mountain hiker and his gear have mass 110 kg He walks a distance of 156 m on a hill that slants 30 with the horizontal How...
- Q F is applied to the car the car slows down to a halt The work performed on the car is 1 A car is traveling along a straight highway When...
- Q 8 Force N 10 9 8 3 3 2 2 3 4 5 6 7 Distance of displacement m 8 ta 10x The graph shows the relationship between a force...
- Q 9 110 y 100 90 80 70 60 Force F 8 8 8 8 8 8 50 30 20 10 5 10 15 Displacement m 20 25 All change The...
- Q Work A force of 4 pounds is required to hold a spring stretched 0 6 feet beyond its natural length How much work in foot pounds is done in stretching...
- Q Force N 13 124 11 10 8 9 10 11 12 13 14 15 16 Distance of displacement m A non uniform force is applied to an object as it...
- Q All changes save 7 A block slides from rest down the 26 0 m length of a frictionless ramp The ramp angle is 23 0 to the horizontal What is...
- Q 2 A 0 500kg ball is placed on a ramp that is 3 00m tall and has a length of 11 0m The ball is given a slight shove so...
- Q Figure shows a partial profile of a roller coaster ride Friction and air resistance are negligible The speed at the top of the highest hill A is 70 0 m...
- Q 5 3 00 m A B 6 00 m C A 10 0 kg block is released from point A The track is frictionless except for the portion between B...
- Q 3 A smooth 0 16 kg hockey puck slides across a smooth gym floor experiences a frictional force of 0 36 N and stops in a distance of 2 3...
- Q The graph below represents the force on a 5 00kg object as it is moved a through a displacement A How much work is done in the following graph as...
- Q A student in a lab exerts a 25 N force to pull a block a distance of 0 48 m If a total of 11 J of work is done...
- Q A 80 0 kg skydiver falls straight downward with an open parachute through a vertical height of 300 0 m The skydiver s velocity remains constant What is the work...
- Q 35 2 5m m 60kg Find the final speed of the initial speed is 7 5 y 9 Find y she can reach a 3 0m hill the initial Speed...
- Q Roger Federer tosses the ball 2 0 m straight up from his hand for his first serve Solve using conservation of energy principles a Calculate the speed of the ball...
- Q A smooth 0 16 kg hockey puck slides across a smooth gym floor and experiences a frictional force of 0 36 N and stops in a distance of 2 3...
- Q The following situation may or may not be consistent with the principle of conservation of mechanical energy For the following example state whether mechanical energy is conserved or not conserved...
- Q A student pulls a wagon full of textbooks 25 0 m with a force of 32 0 N at an angle of 30 to the horizontal Her work done on...
- Q ype the correct answer in each box eff is part of a trekking team As he climbs a hill he drops his water bottle which has a mass of 0...
- Q object another 5m what is the object s new kinetic energy An object has 65J of kinetic energy If a 15N force pushes the already moving
- Q 10 0 045 X 0 212 x Which path going up the mountain will have more potential energy Path A which is less steep but takes longer Path B which...
- Q A suitcase is pushed along a ramp from 2 0 to 6 0 with a 65 N force at 60 to the ramp Distances on the ramp are measured in...
- Q 20 A 19 kg box of math books is carried up a set of stairs that is 8 m long and inclined at 50 How much work is done against...
- Q Sa If a 5kg object has potential energy before it is dropped from a 200m building how much kinetic energy will it have before hitting the ground Sb hitting the...
- Q 2 You and an elephant are having a sled race down the hill next to the school You both start at the same height a Who has more potential energy...
- Q com lifts Jerry weighing 1 2 N into the air so that he can reach a countertop 1 3 m above him How much work does Tom do
- Q A roller coaster car of mass 1500 kg starts from rest at an elevation of 35 0 m high and rolls down and then up another incline of lower height...
- Q A 0 321 kg ball is moving upward with a speed of 32 5 m s when at a height of 17 4 meters above the ground Determine the total...
- Q In a physics lab a 54 kg student runs up a 2 2 meter tall flight of stairs in 4 9 seconds Find the student s power rating
- Q Determine the amount of work done by an upward force is applied to lift a 1 9 kg object to a height of 7 5 meters at constant speed Remember...
- Q 5 Newton force is applied to a 2 kg object to move it across a horizontal surface at a constant speed for a distance of 4 meters The free body...
- Q A sledder effortlessly glides from position A across the snow to position B as shown in the diagram below Position A KE 4000J PE 8000J Resistance forces are negligible At...
- Q Calculate the kinetic energy of a 0 6 kg object moving at 4 71 m s
- Q 5 What is the energy required to power a 1000 Watt microwave for 2 minutes 10 points
- Q Let F 4xe i 2x e Let C be the path consisting of line from 0 0 to 8 0 to 8 2 to 0 0 find F di C
- Q 57 5 kg cross country skier uses her poles to accelerate from rest to a speed of 8 75 m s in 29 9 seconds Determine the power generated by...
- Q Determine the total mechanical energy of a 58 5 kg skier when he s at a height of 21 6 m and moving at 25 8 m
- Q Ou push a wheelbarrow a distance of 58 5 m at a constant speed for 29 9 s by exerting a 198 N force horizontally What power do you develop
- Q 3 force 41 j 3k N Find the work done F K xi yj is working on a particle which moves from 0 0 to a 0 along x axis...
- Q 0 YOU WILL HAVE CERTAIN AMOUNT OF TIME AND DAYS AND ONE ATTEMPT TO SUMMIT YOUR TE ONCE YOU OPEN THE TEST OR QUIZ TIME STARTS COUNTING ALL CALCULATIONS MUST...
- Q A 70 0 kg skier starting from rest at A travels down a hill shown in the figure below If H 100 0 m What is the kinetic energy in...
- Q Particle A and particle B each of mass M move along the x axis exerting a force on each other The potential energy of the system of two particles associated...
- Q 5 When should you apply the conservation of momentum equation
- Q bottom end measured vertically a What is her gravitational potential energy at the top of the slide relative to the bottom 1 2 kJ b What is her kinetic energy...
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