A tennis player hits a 0.1-kilogram tennis ball with her racket from the north end of a court. Her racket was traveling at 65 kilometers per hour. The ball accelerated at a rate of 10 meters per second squared. The ball hits the floor on the south end of the tennis court. The floor sends the ball toward the tennis player's opponent with the same acceleration. How much force did the floor on the south end of the court exert on the ball?

Question

A tennis player hits a 0.1-kilogram tennis ball with her racket from the north end of a court. Her racket was traveling at 65 kilometers per hour. The ball accelerated at a rate of 10 meters per second squared. The ball hits the floor on the south end of the tennis court. The floor sends the ball toward the tennis player's opponent with the same acceleration. How much force did the floor on the south end of the court exert on the ball?

• 7.5 N
• 1 N
• 0.01 N
• 6.5 N

Answer 1

hope im not too late

1 newton

2 force = mass × acceleration

3 1.6 N

4 1 N

5 8 N

hope this helped :)

Answer 2

To calculate the force exerted by the floor on the tennis ball, we can use Newton's second law of motion, which states that force is equal to mass multiplied by acceleration (F = m * a).

First, let's calculate the mass of the tennis ball:
Given the weight of the ball (0.1 kg), we can assume that the weight is equivalent to mass. Therefore, the mass of the tennis ball is 0.1 kg.

Next, let's calculate the acceleration of the tennis ball:
The ball accelerates at a rate of 10 meters per second squared. Since the ball is rebounding from the floor, the acceleration will be in the opposite direction. So the acceleration is -10 m/s^2.

Now, we can substitute the values into the formula F = m * a:
Force = m * a
Force = 0.1 kg * -10 m/s^2
Force = -1 N

The negative sign indicates that the force is in the opposite direction of the applied force. So the floor exerts a force of -1 N on the tennis ball.

Therefore, the correct option is:
• 1 N

Answer 3

To determine how much force the floor exerted on the ball, we need to calculate the force using Newton's second law of motion.

Newton's second law states that force (F) equals mass (m) multiplied by acceleration (a), or F = m * a.

Given:
- Mass of the tennis ball (m) = 0.1 kg
- Acceleration (a) = 10 m/s²

We can now substitute these values into the formula to calculate the force:

F = m * a
F = 0.1 kg * 10 m/s²
F = 1 N

Therefore, the force exerted by the floor on the south end of the court on the tennis ball is 1 N.

The correct answer is:
• 1 N