Question

To determine power, it is necessary to know the A. energy required and the time it takes. B. amount of work and the distance covered. C. amount of work in a given time. D. distance and time it takes to do work.

Answer 1

Answer:

Option (A)

Explanation:

The rate of doing work is called power.

Power is given by the formula

Power = Work / time

Work done is equivalent to energy.

So, Energy required to the time taken is called power. Its SI unit is Watt and it is a scalar quantity.

Answer 2

The answer for this would be A. since power is Joules/seconds and energy is rated in Joules