jack measured that his racquet gives a squash ball 45.0J of kinetic energy when he hits it with a particilar shot.he also measures that it has 18.0J of kinetic energy after one bounce off the court wall.

what percentage of its mechanical energy does the ball lose while it bounce off the court wall?

what happens to most of this lost energy?

describr an experiment that might allow you to verify your answer.

1. Divide the lost Kinetic Energy by the original Kinetic Energy
2. What do you think?
3. Hint: added heat increases temperature

60%

To determine the percentage of mechanical energy lost by the ball when it bounces off the court wall, you need to divide the difference in kinetic energy before and after the bounce by the original kinetic energy and multiply by 100.

1. Calculate the difference in kinetic energy:
Lost Kinetic Energy = Initial Kinetic Energy - Final Kinetic Energy = 45.0J - 18.0J = 27.0J

2. Divide the lost kinetic energy by the original kinetic energy:
Percentage of Mechanical Energy Lost = (Lost Kinetic Energy / Initial Kinetic Energy) x 100%
Percentage of Mechanical Energy Lost = (27.0J / 45.0J) x 100% = 60%

Therefore, the ball loses approximately 60% of its mechanical energy when bouncing off the court wall.

Most of the lost energy is typically converted into other forms, primarily heat and sound.

To verify this, you can conduct an experiment. Here's a suggested procedure:

1. Set up a controlled environment, such as a squash court, with the necessary equipment, including a squash ball, a racquet, and a wall.
2. Measure the initial kinetic energy of the ball using a method like the one Jack performed.
3. Position the wall at a known distance from where you will be hitting the ball.
4. Hit the ball with the racquet, making sure it strikes the wall and accurately measure its kinetic energy after the bounce.
5. Calculate the percentage of mechanical energy lost using the formula mentioned earlier.
6. Repeat the experiment multiple times, each time adjusting the conditions (e.g., angle of impact, force applied) and recording the results.
7. Analyze the data and calculate the average percentage of mechanical energy lost.
8. Compare the average value with the predicted value (60%) to verify the accuracy of your experiment.

By comparing the calculated value with the predicted 60% value, you can determine if the experiment validates the amount of mechanical energy lost during the ball's bounce.