A golf ball is rolling in the grass. What must happen to stop the ball from continuing to roll?

An unbalanced net force must be applied.
A balanced net force must be applied.
The net force must be zero.
The net force must be greater than the applied force.

1 answer

To stop a rolling golf ball in the grass, an unbalanced net force must be applied. This is because the ball will continue to roll due to its inertia unless an external force acts on it to change its motion. The unbalanced force can be the friction between the ball and the grass, which will gradually slow down and eventually stop the ball.

So, the correct answer is: An unbalanced net force must be applied.