The work done on a body of 10kg and acquired a velocity of 4m/s from rest is what?

A 30kg block rests on a rough horizontal surface A force of 200N is applied on the block The block acquires a speed of 4m//s starting from rest in 2s What is the value of coefficient of friction ? .

A 64-kg woman stands on frictionless ice. She kicks a 0.10-kg stone backwards with her feet so that the stone acquires a velocity of 1.1m/s. The velocity (in m/s) acquired by the woman is :

A force is applied on a body of mass 20 kg moving with a velocity of 40ms^(-1) . The body attains a velocity of 50ms^(-1) in 2 second. Calculate the work done by the body.

An object of mass 10 kg falls from rest through a vertical distance of 10 m and acquires a velocity of 10 ms^(-1) . The work done by the push of air on the object is (g = 10 ms^(-2) )

A body of mass 2 kg moving with a velocity 3 m//s collides with a body of mass 1 kg moving with a velocity of 4 m//s in opposite direction. If the collision is head on and completely inelastic, then

Find the kinetic energy of a body of mass 1 kg moving with a uniform velocity of 10 m s^(-1)

An object of mass 5 kg falls from rest through a vertical distance of 20 m and attains a velocity of 10 m/s. How much work is done by the resistance of the air on the object? (g=10m//s^(2)) .

An object of mass 5 kg falls from rest through a vertical distance of 20 m and attains a velocity of 10 m/s. How much work is done by the resistance of the air on the object? (g=10m//s^(2)) .

At a place where the acceleration due to gravity is 10"m sec"^(-2) a force of 5 kg - wt acts on a body of mass 10 kg initially at rest. The velocity of the body after 4 second is

The gravitational potential difference between the surface of a planet and a point 20 m above it is 16 J//kg . Calculate the work done in moving a 4 kg body by 8m on a slope of 60^@ from the horizontal.