Advertisements
Advertisements
प्रश्न
Kinetic energy = 1/2 × mass × ............
उत्तर
Kinetic energy = 1/2 × mass ×(Velocity)2
APPEARS IN
संबंधित प्रश्न
A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?
The energy of a flying kite is kinetic energy.
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same?
Write the expression for the kinetic energy of a body explaining the meaning of the symbols used.
Two bodies of equal masses are moving with uniform velocities v and 2v. Find the ratio of their kinetic energies.
How much work is needed to be done on a ball of mass 50 g to give it a momentum of 5 kg cm s-1?
Two bodies have masses in the ratio 5 : 1 and their kinetic energies are in the ratio 125 : 9. Calculate the ratio of their velocities.
A ball of mass 200 g falls from a height of 5 metres. What is its kinetic energy when it just reaches the ground? (g = 9.8 m/s2)
A horse and a dog are running with the same speed. If the weight of the horse is ten times that of the dog, What is the ration of their kinetic energies?
A body starts from rest and is acted on by a constant force. The ratio of kinetic energy gained by it in the first five seconds to that gained in the next five-second is:
