### Home > CALC > Chapter 5 > Lesson 5.1.3 > Problem 5-29

5-29.

Kwok is standing on top of a

How far up does the tennis ball go before it turns around and starts to come down?

The tennis ball turns around when

.How fast is it going when it hits the ground below?

Evaluate

(time of impact). Letto find the time of impact.