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प्रश्न
Kinetic energy = 1/2 × mass × ............
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उत्तर
Kinetic energy = 1/2 × mass ×(Velocity)2
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संबंधित प्रश्न
An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy? If the object is allowed to fall, find its kinetic energy when it is half-way down.
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
A body of mass 60 kg has the momentum 3000 kg m s-1. Calculate:
- the kinetic energy.
- the speed of the body.
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.
How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?
A car is accelerated on a levelled road and attains a speed of 4 times its initial speed. In this process, the kinetic energy of the car :
Which of the following does not posses the ability to do work not because of motion?
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:
When the speed of a moving object is doubled, then its kenetic energy ______.
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.
