A stationary object begins to move when it is pushed. Pushing is a force that acts on the ball and makes it move. Force can be applied from the opposite direction to stop a moving ball. Force can also make a moving object go faster, slower or change direction.
The trolley is going down too fast. Applying force from the opposite direction will slow down a moving object. Pushing the trolley in the same direction will make it move faster. Applying a force to the side of the trolley changes its direction.
This post very interesting!
ReplyDelete