Question

Paul lifts a sack weighing 245 newtons vertically from the ground and places it on a platform at a height of 0.7 meters. if he takes 10 seconds to do this task, what power has he expended during this time?

Answer 1

B. 17.15 watts

Step-by-step explanation:

Answer 2

Work done= 245 x 0.7 = 171.5 J
power = work done/time

=> power = 171.5/ 10 = 17.15 W

In short, your answer is 17.15 W (watt)

hope that helps :) good luck