Question

select the correct answer. the formula for calculating power is work divided by time (power = work / time). what are two ways of stating the same relationship? power = work × time time = work × power time = work ÷ power work = power × time work = power ÷ time

Explanation:

Step1: Recall power - work - time relationship

Power is defined as the rate of doing work. The basic formula is $power=\frac{work}{time}$, which can be rewritten in different forms by cross - multiplying.

Step2: Rearrange the formula for work

If $power = \frac{work}{time}$, then $work=power\times time$ by multiplying both sides of the equation by time.

Step3: Rearrange the formula for time

Starting from $power=\frac{work}{time}$, we can get $time = \frac{work}{power}$ by cross - multiplying (multiplying both sides by time and then dividing both sides by power).

Answer:

time = work $\div$ power, work = power $\times$ time