Sarah uses an inclined plant to load a chest into her truck. If she does 84 Joules of work, and the inclined plane is 3 meters long, how much force does she expend?(1 point)
Responses
87 N
87 N
81 N
81 N
252 N
252 N
28 N
To find the force expended by Sarah, we can use the formula:
work = force x distance
Given that Sarah does 84 Joules of work and the inclined plane is 3 meters long, we can rearrange the formula to solve for force:
force = work / distance
force = 84 Joules / 3 meters
force = 28 N
Therefore, Sarah expends 28 Newtons of force.