Write short notes on work power and energy
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work :work is done when a force acting on a body produces displacement in it . work is scaler quantity.
workdone=force×displace ment perpendicular to the direction of the force
power: The rate of doing work is called power.power is scalar quantity.The S.I. unit of power is watt.
Energy : The capacity of a body to do work is called its energy . energy is scalar quantity. The S.I unit of energy is joule
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Work is any activity involving mental or physical effort. It is normally carried out to achieve a result.
Power is the force that is obtained from physical or chemical resources, that is required to drive machines or to complete a physical movement.
Energy is required for prolonged physical or mental activity.
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