A body of mass 1 kg moves with an initial velocity of 15` m/s`. If its velocity changes to 25 `m/s` in 5 seconds, find the force acting on the body.

A body of mass 2 kg moves with a velocity of 5 m/s. Find its kinetic energy.

Solve the following examples: (numerical problems) A body of mass 1 kg, moving with a velocity of 4 m/s collides with a body of mass 0.5 kg moving with a velocity of 2 m/s . If the velocity of the first body after collision is 8/3 m/s , find the velocity of the second body after collision.

A particle is moving with velocity 5 m/s towards east and its velocity changes to 5 m/s north in 10 s. Find the acceleration.

A certain force acts on a body at rest. If after 10 seconds the body moves with a velocity of 20 m/s and if its mass is 3 kg, find the magnitude of the force acting on the body.

A body moves with a uniform acceleration and its initial velocity is 5 m/s . After 10 seconds, its velocity becomes 25 m/s . Find the acceleration of the body.

Solve the following examples: (numerical problems) A body moves along a straight line at a velocity of 10 m/s for 10 s and then at a velocity of 15 m/s for 15 s. Find the average velocity of the body.

A body of mass 0.1 kg travelling with a velocity of 5 m/s, collides head-on with another body of mass 0.2 kg travelling in the same direction with a velocity of 1.2 m/s. If the two bodies stick together after collision, their common velocity is

A body of mass 2 kg collides with a body of mass 1 kg. Their initial velocities are 6 m/s and 4 m/s respectively. If the velocity of the first body after collision is : (14)/3 m/s , find the velocity of the second body after collision.

Solve the following examples: (numerical problems) A body moves in a straight line with a uniform acceleration. If the initial velocity of the body is 5 m/s and the velocity after 10 s is 15 m/s, find the acceleration of the body and

A body of mass 1 kg moving with velocity 5 m/s collides with another body of mass 2 kg moving with velocity 1.5 m/s in opposite direction. If the coefficient of restitution is 0.8, their velocities aftter collision respectively are