Newton's 3rd Law

Newton’s 3rd Law states…

• Objects in motion stay in motion and objects at rest stay at rest

• Force is equal to mass times acceleration

• For each action there is an equal and opposite reaction

An archer shoots an arrow. The action force is the bowstring against the arrow, The reaction force is…

• Air resistance against the bow

• Arrow’s push against the bowstring

• Grip of the archer’s hand on the bow

A player catches a ball. The action force is the impact of the ball against the player’s glove. The reaction force is…

• The force the glove exerts on the ball

• The player’s grip on the glove

• The friction of the ground on the player’s shoes

A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is…

• The grip of the player’s hands on the ball

• The air resistance on the ball

• The force of the ball against the bat

A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force against the bat of…

• Less than 1,000 N

• More than 1,000 N

• 1,000 N

A person is attracted toward the center of the Earth by a 500 N gravitational force. The force that the Earth is attracted toward the person is…

• 500 N

• Much less than 500 N

• Much more than 500 N

A 70kg person throws a 3kg ball. The acceleration of the ball is...

• the same as the acceleration of the person

• less than the acceleration of the person

• more than the acceleration of the person