Question

part d - application & critical thinking

1. a soccer ball is kicked across the field and eventually stops. use newtons first law to explain why it doesnt roll forever.
2. a rocket launches into space. identify the action and reaction forces.

Explanation:

1. Newton's First Law states that an object in motion will stay in motion with a constant velocity unless acted upon by an un - balanced force. The soccer ball stops because of friction between the ball and the field surface, as well as air resistance. These are un - balanced forces that slow it down.
2. According to Newton's Third Law, for every action, there is an equal and opposite reaction. In the case of a rocket launch, the action force is the hot gases being expelled downward from the rocket engines. The reaction force is the upward force that propels the rocket into space.

Answer:

1. Friction and air resistance act as un - balanced forces to stop the ball.
2. Action force: Hot gases expelled downward. Reaction force: Upward force on the rocket.