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Work, Energy and Power Test - 52
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Work, Energy and Power Test - 52

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  • Question 1/10
    4 / -1
    The bob A of a simple pendulum is released when the string makes an angle of 45° with the vertical. It hits another bob B of the same material and same mass kept at rest on the table. If the collision is elastic

  • Question 2/10
    4 / -1
    A big ball of mass M, moving with velocity u strikes a small ball of mass m, which is at rest. Finally small ball obtains velocity u and big ball v. Then, what is the value of v?
    Solutions

  • Question 3/10
    4 / -1
    A body of mass 5 kg moving with a velocity 10 m/s collides with another body of the mass 20 kg at rest and comes to rest. The velocity of the second body due to collision is
    Solutions

  • Question 4/10
    4 / -1
    A body of mass M1 collides elastically with another mass M2 at rest. There is maximum transfer of energy when
  • Question 5/10
    4 / -1
    A body of mass 2 kg makes an elastic collision with another body at rest and continues to move in the original direction with one fourth of its original speed. The mass of the second body which collides with the first body is
    Solutions

  • Question 6/10
    4 / -1
    A body of mass M moves with velocity v and collides elastically with a another body of mass m (M >> m) at rest, then the velocity of body of mass m is
  • Question 7/10
    4 / -1
    Four smooth steel balls of equal mass at rest are free to move along a straight line without friction. The first ball is given a velocity of 0.4 m/s. It collides head on with the second elastically, the second one similarly with the third and so on. The velocity of the last ball is
  • Question 8/10
    4 / -1
    A space craft of mass ‘M’ and moving with velocity ‘v’ suddenly breaks in two pieces of same mass m. After the explosion one of the mass ‘m’ becomes stationary. What is the velocity of the other part of craft?
    Solutions

  • Question 9/10
    4 / -1
    In an inelastic collision
  • Question 10/10
    4 / -1
    Three identical spherical balls A, B and C are placed on a table as shown in the figure along a straight line. B and C are at rest initially. The ball A hits B head on with a speed of 10 ms–1. Then, after all collisions (assumed to be elastic) A and B are brought to rest and C takes off with a velocity of

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