Chapter 2, Problem 18RQ

Give an example of something moving when a net force of zero acts on it.

To determine

An example of something moving when net force acting on it is zero.

Answer to Problem 18RQ

An example of something moving when net force acting on it is zero is bowling balling rolling with constant velocity.

Explanation of Solution

The object experiences zero net force in two conditions, that is, at rest or when moving with constant velocity. When the object moves with constant velocity, the net force acting over it becomes zero as the acceleration is zero. An example of something moving but has zero net force is when a bowling ball is rolling with constant velocity. The acceleration of the bowling ball will be zero, which will result in zero net force over the ball until it hit the pins.

Conclusion:

Therefore, an example for something moving when net force acting on it is zero is bowling balling rolling with constant velocity.