Advertisements
Advertisements
प्रश्न
The kinetic energy of a body is the energy by virtue of its ______.
उत्तर
The kinetic energy of a body is the energy by virtue of its motion.
APPEARS IN
संबंधित प्रश्न
A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?
Kinetic energy = 1/2 × mass × ............
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 body of mass 60 kg has the momentum 3000 kg m s-1. Calculate:
- the kinetic energy.
- the speed of the body.
How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?
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)
Find out the form of energy possessed by the following thing.
Water falls
When stored water falls down, potential energy of water is converted into ______.
A car of mass 120 kg is moving at a speed 18 km/h and it accelerates to attain a speed of 54 km/h in 5 seconds. Calculate:
- the work done by the engine.
- the power of the engine.
