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प्रश्न
The kinetic energy of a body is the energy by virtue of its ______.
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उत्तर
The kinetic energy of a body is the energy by virtue of its motion.
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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?
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?
On what factors does the kinetic energy of a body depend?
What is the kinetic energy of a body of mass 1 kg moving with a speed of 2 m/s?
How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?
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)
What do you understand by the kinetic energy of a body?
What are the uses of mechanical energy?
