Question

Ben and Will are in the weightlifting room. Will lifts a barbell with 100 N of force over his head 10 times in one minute; Ben lifts the same barbell using 100 N of force over his head 10 times in 10 seconds. Answer each question in the box below and explain your answers.

Which person does the most work?
Which person delivers the most power?

Answer 1

Ben does the most work, while Ben delivers the most power.

Step-by-step explanation:

The amount of work done is calculated by multiplying the force applied by the distance over which the force is exerted. In this scenario, both Will and Ben lift the same barbell with the same force of 100 N. However, Ben lifts the barbell in a shorter time period, completing 10 lifts in 10 seconds, while Will completes 10 lifts in one minute. Therefore, Ben does more work since he lifts the barbell in a shorter amount of time.

On the other hand, power is defined as the amount of work done per unit of time. Since both Will and Ben exert the same force and work over the same vertical distance, their power is determined by the time taken to perform the work. Ben completes the 10 lifts in 10 seconds, while Will takes one minute. Therefore, Ben delivers more power since he performs the work in a shorter amount of time.