Advertisements
Advertisements
प्रश्न
Find out the form of energy possessed by the following thing.
A rolling ball
Advertisements
उत्तर
Kinetic Energy
APPEARS IN
संबंधित प्रश्न
The kinetic energy of an object of mass m moving with a velocity of 5 m s−1 is 25 J. What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity is increased three times?
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
A ball of mass M is moving with a speed v. What is its kinetic energy?
If the speed of a car is halved, how does its kinetic energy change?
A truck weighing 1000 kgf changes its speed from 36 km h-1 to 72 km h-1 in 2 minutes. Calculate:
- the work done by the engine and
- its power (g = 10 m s-2)
A body of mass 60 kg has the momentum 3000 kg m s-1. Calculate:
- the kinetic energy.
- the speed of the body.
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?
How fast should a man of 50 kg run so that his kinetic energy be 625 J?
What are the uses of mechanical energy?
If the mass as well as the velocity of a body is doubled then the kinetic energy of the body ______ the initial kinetic energy.
