Newton's 1st Law Problems

Question

1. How does wearing a seat belt in a car relate to Newton’s first law?
2. How does the Voyager 1 spacecraft follow Newton’s first law?
3. How does the “tablecloth trick” exhibit Newton’s first law?

Answer 1

1st Law is about zero net force.

In the ABSENCE of a net force, velocity remains unchanged.

1. How does wearing a seat belt in a car relate to Newton’s first law?

during breaking, seat belt exerts a net force reducing the occupants forward velocity.

1. How does the Voyager 1 spacecraft follow Newton’s first law?

It continues to move at constant speed without any of the rockets being deployed.

1. How does the “tablecloth trick” exhibit Newton’s first law?

If the cloth is moves sufficiently rapidly, no net force is experienced by the objects and therefore their velocity remains unchanged (@ zero)

Mr. A