Question

How fast must a person lift a barbell with a weight of 635 N to a height of 2.43 meters in order to have a power of 482 W

Answer 1

Time = 3.2 seconds

Step-by-step explanation:

Given the following data;

Weight = 635 N

Height, h = 2.43 m

Power = 482 Watts

To find the time;

Power = mgh/time

But weight = mg = 635

Substituting into the formula, we have;

482 = (635 * 2.43)/time

482 = 1543.05/time

Time = 1543.05/482

Time = 3.2 seconds