Two objects of mass `M_1 and M_2` are dropped in vacuum from a height above the surface of earth `(M_1>M_2)`. which one will reach the ground first and why?

Two spherical bobs, one metallic and the other of glass, of the same size are allowed to fall freely from the same height above the ground. Which of the two would reach earlier and why?

Two masses m and 2m are dropped from height h and 2h. On reaching the ground, which will have a greater kinetic energy and why ?

A body of mass 6 kg is kept at a height of 5 m from the surface of earth. Find the potential energy of the body.

A ball dropped from a height 'h' reaches the ground in time 'T'. What is its height from the ground at time T/2 ?

A body of mass 5 kg is dropped form a height o 1 m. Its kinetic energy just before reaching the ground is

An object of mass m is raised from the surface of the earth to a heigt equal to the radius of the earth , that is, taken from a distance R to 2R from the centre of the earth. What is the gain in its potential energy?

Find the energy possessed by an object of mass 10 kg when it is at a height of 6m above the ground

Two bodies of mass m_1 andm_2(>m_1) have equal kinetic energies. Which body possesses greater linear momentum.

Two bodies of mass m_1 andm_2(>m_1) have equal linear momentum. Which body possesses greater kinetic energy?

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m/s and 1 m/s, respectively. They collide and after the collision , the first object moves at a velocity of 1.67 m /s Determine the velocity of the second object.