Advertisements
Advertisements
प्रश्न
A ball of mass M is moving with a speed v. What is its kinetic energy?
Advertisements
उत्तर
Kinetic energy of a ball of mass m and moving with speed v is K.E. = 1/2 Mv2
APPEARS IN
संबंधित प्रश्न
A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?
When a boy doubles his speed, his kinetic energy becomes
The kinetic energy of a body is the energy by virtue of its ______.
A cannon ball of mass 500 g is fired with a speed of 15 m s-1. Find:
- its kinetic energy.
- its momentum.
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?
If the speed of a body is halved, what will be the change in its kinetic energy?
How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?
Explain the types of mechanical energy.
When a bell fixed on a cycle rings, then the energy conversion that takes place is ______.
A ball of mass 0.5 kg slows down from a speed of 10 m s−1 to that of 6 m s−1. Calculate the change in the kinetic energy of the ball.
