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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
Name the unit of physical quantity obtained by the formula `(2K)/v^2` Where K: kinetic energy, v: linear velocity
A cannon ball of mass 500 g is fired with a speed of 15 m s-1. Find:
- its kinetic energy.
- its momentum.
A body of mass 60 kg has the momentum 3000 kg m s-1. Calculate:
- the kinetic energy.
- the speed of the body.
Which would have a greater effect on the kinetic energy of an object : doubling the mass or doubling the velocity?
On a level road, a scooterist applies brakes to slow down from a speed of 10 m/s to 5 m/s. If the mass of the scooterist and the scooter be 150 kg, calculate the work done by the brakes. (Neglect air resistance and friction)
What do you understand by the kinetic energy of a body?
A bullet of mass 15 g has a speed of 400 m/s. What is its kinetic energy? If the bullet strikes a thick target and is brought to rest in 2 cm, calculate the average net force acting on the bullet. What happens to the kinetic energy originally in the bullet?
Find out the form of energy possessed by the following thing.
A rolling ball
An apple falling from a tree is an example for kinetic 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.
