A block of mass 'm' slides down a frictionless curved track from a height 'h'. It then collides elastically with a stationary block of mass '2m'. After the collision, the smaller block momentarily comes to rest. What is the maximum height the larger block will reach?

A 2kg mass is rotating on a circular path of radius 0.8 m with angular velocity of 44 rad / sec. If radius of path becomes 1 M, then the value of angular velocity will be [rad / sec]

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine is ($g = 9.8\;m/{s^2}$)

An apple gives 21 kJ energy to a boy. How much height he can climb by using this energy if his efficiency is 28% (mass of boy =40 kg)

A rubber ball is dropped from a height of 5 m on a planet, where the acceleration due to gravity is not known. On bouncing it rises to 1.8 m. The ball loses its velocity on bouncing by a factor of

A block of mass 'm' slides down a frictionless curved track from a height 'h'. It then collides elastically with a stationary block of mass '2m'. After the collision, the smaller block momentarily comes to rest. What is the maximum height the larger block will reach?

A solid sphere rolls without slipping down an inclined plane of angle $heta$. What fraction of its total kinetic energy is rotational?

A ball is dropped from a height. Which of the following quantities remains constant as it falls (ignoring air resistance)?

An open knife edge of mass ‘m’ is dropped from a height ‘h’ on a wooden floor. If the blade penetrates upto the depth ‘d’ into the wood, the average resistance offered by the wood edge is

A ball of mass 2 kg moving with velocity $3{\rm{\;m}}{{\rm{s}}^{ - 1}},$ collides with spring of natural length 2 m and force constant $144{\rm{\;N}}{{\rm{m}}^{ - 1}}.$ what will be length of compressed spring?

An apple gives 21 kJ energy to a boy. How much height he can climb by using this energy if his efficiency is 28% (mass of boy =40 kg)