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CBSE Class 9 Answered

what is relation between work , energy and power ?explain 
 
Asked by Parul | 31 Dec, 2015, 04:29: PM
answered-by-expert Expert Answer
The amount of energy possessed by a body is the amount of work it can do when that energy is released.
Power is defined as the rate of doing work or the rate of transfer of energy.
begin mathsize 12px style Power equals fraction numerator Work space done over denominator Time space taken end fraction Or space Power space equals space fraction numerator Energy space consumed over denominator Time space taken end fraction end style
Answered by Yashvanti Jain | 31 Dec, 2015, 06:35: PM

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CBSE 9 - Physics
An object of mass 1kg is falling from the height h=10m.calculate a) the total energy of an object at h=10m b) potential energy of the object when it is at h=4m c) kinetic energy of the object when it is at h=4m d) what will be the speed of the object when it hits the ground
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