Question

To determine power, it is necessary to know the (2 points) 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

the answer A. since power is Joules/seconds and energy is rated in Joules

Answer 2

Answer:

a. energy required and the time it takes.

Explanation:

As we know that power is defined as rate of work done

so we know that

$Power = \frac{work}{time}$

so here we also know that

$Work = \Delta K$

so we can say

$Power = \frac{\Delta K}{\Delta t}$

so here we require the change in energy and time in order to find the power consumed

so correct answer is

a. energy required and the time it takes.