A girl pushes a cart to the left with a 100-N force. A boy pushes it to the right with a 50-N force. The net force exerted on the cart is
A)50 N to the left.
B)50 N to the right.
C)100 N to the left.
D)100 N to the right.

Question

Quizplus · Accepted Answer

The net force is the difference between the two forces since they are in opposite directions. The girl exerts a 100-N force to the left, and the boy exerts a 50-N force to the right. The net force is 100 N - 50 N = 50 N to the left.

A Girl Pushes a Cart to the Left with a 100-N