A bullet of mass 0.1 kg moving horizontally with a velocity of 20 `m//s` strike a stationary target and is brought to rest in 0.1 s. Find the impulse and average force of impact.

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

A bullet of mass 10 g is fired with a velocity of 100 m/s from a rifle of mass 2.5 kg, the recoil velocity of the rifle is

A body moves with a velocity of 10 m/s for 10 s and then with a velocity of 20 m/s in the same direction for 40 s. Find its average velocity.

A body of mass10 kg ismoving in a circle of radius 1 m with an angular velocity of 2 rad/s. The centripetal force is

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 car starts from rest and moves with a uniform acceleration of 1 m//s^2 ? for 10 seconds. It then moves with a uniform velocity for 30 seconds. The brakes are then applied and the car is brought to rest in 10 seconds. Find the total distance covered by the car.

What is the de Broglie wavelength of a 2 kg mass moving with a velocity of 10 m/s?

A circular disc of mass 0.41 kg and radius 10 m rolls without slipping with a velocity of 2 m/s. The total kinetic energy of disc is

A cricket ball of mass 0.5 kg strikes a circket bat normally with a velocity of 20" m s"^(-1) and rebounds with a velocity of 10" m s"^(-1) . The impulse of the force exerted by the ball on the bat is

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.