Question

Question 1

100 pts
If a ball is thrown vertically upward at a speed of 77 feet per second from 5 feet off the ground, how
long will it take to be 20 feet off the ground?

Answer 1

0.195 seconds

Explanation:

We throw the ball from 5 feet off the ground and we want to know how long it will take for the ball to be 20 feet off the ground. We can subtract to find the height we need off the ground.

20 - 5 = 15ft

We are give the rate 77ft/s so it won't take a full second for the ball to be 20ft in the air. We can divide to find the time it takes.

15 / 77 ≈ 0.195s

Best of Luck!