Laws of MotionHard
Question
The pulley arrangements shown in the figure are identical, the mass of the rope being negligible. In case (a) mass m is lifted by attaching a mass of 2m to the other end of the rope. In case (b) the mass m is lifted by pulling the other end of the rope with a constant downward force F = 2mg, where g is the acceleration due to gravity. The acceleration of mass m in case (a) is :-
Options
A.Zero
B.More than that in case (b)
C.Less than that in case (b)
D.Equal to that in case (b)
More Laws of Motion Questions
A boy of mass 40 kg is hanging from the horizontal branch of a tree. The tension in his arms is minimum when the angle b...Which of the following is not measured in units of energy :-...Block A of mass m is placed over a wedge B of same mass m . Assuming all surface to be smooth . The displacement of bloc...A free 238U nucleus kept in a train emits an alpha particle. When the train is stationary, a nucleus decays and the dist...In the system shown in the figure m1 > m2 . System is held at rest by thread BC . Just after the thread BC is burnt :...