Question

A tennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 Newtons.

How does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket?

A.
The force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket.

B.
The force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket.

C.
The force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.

D.
The force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket.

Answer 1

equal and opposite ? but the mass of the ball is less than that of the racquet, and the racquet is "anchored" (hopefully) by the player. So, the ball flies off and the play continues ?

Answer 2

this is called newton's second law of motion

Answer 3

every action has an equal and opposite reaction

Answer 4

n1 every body continues in a state of rest or uniform motion in a straight line unless acted on by a resultant external force - INERTIA. If its at rest, it tends to remain at rest. If it's moving it tends to remain moving (friction confuses the issue). Watch an ice skater.
n2 the rate of change of MOMENTUM of a body is proportional to the applied force and acts in the same direction. Often written in maths as F=ma
n3 to every ACTION there is an EQUAL and OPPOSITE reaction.

http://www.perendis.webs.com/RELATIVITY/RELATIVITY%20index.htm
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Answer 5

**He** chose to have 3 laws.

So we should have 3 laws.