A body of mass 500kg is thrown vertically upwards with a speed of 200m/s . On the return journey its speed at the starting point will be?

A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s ? (Assume g = 10 m//s^(2) ).

A particle of mass 100 g is thrown vertically upwards with a speed of 5 m//s . The work done by the force of gravity during the time the particle goes up is

A bom of mass 1 kg is thrown vertically upwards with a speed of 100m//s . After 5 seconds, it explodes into two fragments. One fragment of mass 400 gm is found to go down with a speed of 25m//s . What will happen to the second fragment just after the explosion ? (g=10ms^(-1))

A body of mass 2kg is projected vertically upwards with a speed of 3m//s . The maximum gravitational potential energy of the body is :

A ball of mass 0.1 kg is thrown vertically upwards with a speed of 7 ms^(-1) . Calculte the kinetic and potential ebergies after half second .

A ball is thrown vertically upwards with a speed of 9.8 m/s from the ground. Draw the x-t, v-t and a-t graph for its motion.

A body of mass 1 kg is projected vertically upwards wit a speed of 100 m/s. After 6 s it explodes into two parts. One part of mass 400 g comes back with speed 25 m/s. What is the velocity of other part just after explosion?