Aforce pair is produced when a tennis racket strikes a tennis ball. which of the following best explains why the tennis ball does not have zero net force acting on it?

-the force exerted on the ball is greater than that exerted on the racket.
-each half of the force pair acts on a different object.
-the two forces act in the same direction.
-the forces act perpendicular to each other.

Each half of the force pair acts on a different object.

Explanation:

When a tennis racket strikes a tennis ball a pair force is produced. when the racket strikes the ball the racket exerts an action force on the tennis ball, according to Newton's third law for every action there is an equal and opposite reaction force, as a reaction the ball exert an equal and opposite force on the racket. These forces are often called pair forces.

As the forces acts on different bodies (Action force act on ball and reaction force act on racket) so the net force tennis ball is never zero.

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

nah.   i'm just sleepy.