Question

if the forces acting on the cart are balanced, what will happen to its motion? force force force it will accelerate to the right it will speed up forever it will keep moving at constant speed or stay at rest it will accelerate to the left

Explanation:

According to Newton's first - law of motion, when the net force on an object is zero (forces are balanced), an object at rest stays at rest and an object in motion stays in motion with a constant velocity.

Answer:

It will keep moving at constant speed or stay at rest