Question

while a block slides forward 1.35 m, a force pulls back at a 135 direction, doing -17.8 J of work. what is the magnitude of the force?(unit=N)

Answer 1

18.6 N

Step-by-step explanation:

Work = force × distance

W = (F cos θ) d

-17.8 J = (F cos 135°) (1.35 m)

F = 18.6 N