Advertisements
Advertisements
प्रश्न
Write the expression for the kinetic energy of a body explaining the meaning of the symbols used.
Advertisements
उत्तर
Kinetic energy =1/2 Mv2
Where m is the mass of body v is the speed of body.
APPEARS IN
संबंधित प्रश्न
An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?
State two factors on which the kinetic energy of a moving body depends.
If the speed of a car is halved, how does its kinetic energy change?
A body falls freely under gravity from rest. Name the kind of energy it will possess on reaching the ground.
How fast should a man of 50 kg run so that his kinetic energy be 625 J?
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)
A man drops a 10 kg rock from the top of a 5 m ladder. What is its speed just before it hits the ground? What is its kinetic energy when it reaches the ground? (g = 10 m/s2)
Explain the difference between potential energy and kinetic energy.
The energy possessed by a cricket ball bowled by a player is ______.
Water stored in water dams possesses kinetic energy.
