Question

Two movers are attempting to push a couch up a ramp. One mover applies a force of 80 N to the right, but the force of friction between the couch and the ramp is providing a force of 110 N in the opposite direction, and the couch slides down the ramp.

At minimum, how much force will the second mover need to apply to help push the couch up the ramp?

(1 point)
Responses

80 N
80 N

31 N
31 N

110 N
110 N

30 N

Answer 1

80 N + F2 must exceed 110 N, so F2 > 30 N. The smallest choice greater than 30 N is 31 N.