Correct option is B
The correct answer is (b) Power
Explanation:
Power is the quantity that determines the rate at which work is performed by a machine. It is defined as the rate of doing work or the rate of energy transfer.
The formula for power is:
Power is measured in watts (W), where 1 watt equals 1 joule per second.
Information Booster:
Work is done when a force causes a displacement of an object. The amount of work done is given by the equation:
where θ is the angle between the force and displacement vectors.
Power provides insight into how quickly work is being done. For example, a machine that completes work faster has higher power, even if the total work done is the same.
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