Advertisements
Advertisements
प्रश्न
state the unit of energy.
Advertisements
उत्तर
The SI unit of work is ‘joules’ and the CGS unit is ‘erg’.
संबंधित प्रश्न
Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.
In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east, as shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.
How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?
A cricket ball is thrown up from the earth's surface. What happens to its P.E.
(a) during the motion
(b) at the highest point?
How fast should a boy weighting 30 kg run so that his kinetic energy is 375 joule?
State the energy changes which take place when Water stored in the dam is used to turn turbine in dynamo.
State the energy changes which take place when A stone dropped from the top of a cliff reaches the ground after some time.
