Compared to yesterday, you did 3 times the work in one-third the time. To do so, your power output must have been A) the same as yesterday's power output. B) one-third of yesterday's power output. C) 3 times yesterday's power output. D) 9 times yesterday's power output. E) 3⁴ times yesterday's power output.

Question

Quizplus · Accepted Answer

Power is work done per unit time. If you did 3 times the work in one-third the time, your power output is 3 / (1/3) = 9 times yesterday's power output.

Compared to Yesterday, You Did 3 Times the Work in One-Third