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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
A ball of mass M is moving with a speed v. What is its kinetic energy?
A car is moving with a speed of 15 km h-1 and another identical car is moving with a speed of 30 km h-1. Compare their kinetic energy.
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?
Find the momentum of a body of mass 100 g having a kinetic energy of 20 J.
Two objects having equal masses are moving with uniform velocities of 2 m/s and 6 m/s respectively. Calculate the ratio of their kinetic energies.
Explain the difference between potential energy and kinetic energy.
Derive the formula for the kinetic energy of an object of mass m, moving with velocity v.
Explain the types of mechanical energy.
Water stored in water dams possesses kinetic energy.
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.
