Question

During an experiment, your teacher dropped a tennis ball out the window. The ball hits the ground 3.0 second

later. What was the ball's final velocity just before it hit the ground?

Answer 1

29.4m/s

Step-by-step explanation:

Given.

Time (t) = 3.0s

Required

Determine the final velocity

Since, it's a vertical motion, we make use of the following formula to solve for the final velocity (v).

v = u + gt

Where u = 0, g = 9.8m/s² and t = 3s

v = 0 + 9.8m/s² *3s

v = 0 + 29.4m/s

v = 29.4m/s

Hence, the final velocity is 29.4m/s