Abag of books took 3 minutes to move you did 12900 j if work how much power was required to move the bad

71.67 Watts

Explanation:

We know that power is the amount of work that is done per unit of time.

The Power formula is

W= work (Jules)

t= time (seconds)

The unit of power is watts

Before applying the formula, we must pass the minutes to seconds so that it is expressed in the correct units.

a, c, d, e are all applying about success strategies.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.