The KE acquired by a mass m in traveling a certain distance d, starting from rest, under the action of a constant force is directly proportional to  

The coefficient of restitution  e for a perfectly elastic collision

A stone is thrown at an angle of 45^o to the horizontal with kinetic energy K. The kinetic energy at the highest point is

A bullet of mass 10g leaves a rifle at an initial velocity of 1000m/s and strike the earth at the same level with a velocity of 500m/s. The work done in joule to overcome the resistance of air will be

If the momentum of a body is increased by 150% then the percentage increase in its kinetic energy is

A body of mass 1kg is thrown upward with a velocity 20 ms^-1.It momentarily comes to rest after attaining a height of 18m. How much energy is lost due to air friction ? ( g = 10 ms^-2)  

A force F acting on an object varies with distance x as shown here. The force is in newton and x is in metre. The work done by the force in moving the object x = 0 to x = 6m is

If kinetic energy of a body is increased by 300% then the percentage change in momentum will be

A particle of mass m₁ is moving with a velocity v₁ and another particle of mass m₂ is moving with a velocity v₂. Both of them have the same momentum but their different kinetic energies are E₁ and E₂ respectively. If m₁> m₂, then

An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of water jet. What is the rate at which kinetic energy is imparted to water?