Answered

Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Get quick and reliable solutions to your questions from a community of seasoned experts on our user-friendly platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.



Anita is bouncing a tennis ball on the sidewalk. She drops the ball and then watches it bounce back up. At which point does Anita's tennis ball have zero kinetic energy?

A

as it hits the sidewalk's surface

B

just after it hits the sidewalk's surface

С

as it begins to fall to the sidewalk

D

just as it reaches the top of the bounce

Sagot :

Answer:

Just as it reaches the top of the bounce.

Explanation:

When an object reaches to the maximum height, its kinetic energy is equal to 0. It can be calculated as follows :

[tex]K=\dfrac{1}{2}mv^2[/tex]

Where

m is mass and v is velocity

In this problem, Anita is bouncing a tennis ball on the sidewalk. She drops the ball and then watches it bounce back up.

It means, when it reaches the top of the bounce, Anita's tennis ball have zero kinetic energy. Hence, the correct option is (d).

We hope our answers were helpful. Return anytime for more information and answers to any other questions you may have. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.