Question

How much work is done in pushing an object 7.0 m across a floor with a force of 50 N and then

pushing it back to its original position? How much power is used if this work is done in 20 sec?

Answer 1

35/2 J/s

Step-by-step explanation:

Just use the 2 formulas

Work done = Force * distance moved

Power = Work done/time

WD = 7 * 50 = 350

Power = 350 / 20

= 35/2 J/s