Question

It takes a crane 59s to lift a flagstone using 342 W of power. How much work is done on the flagstone? ​

Answer 1

Answer: The work done on the flagstone is 20178 J

Explanation:

Power is the rate at which work is done . It is equal to the amount of work done divided by the time it takes to do the work.

$Work=Power\times time$

Given : work = ?

Power = 342 W = 342J/s

Time = 59 s

$Work=342J/s\times 59s=20178J$

Thus the work done on the flagstone is 20178 J