A ball is thrown vertically upwards from the ground with an initial velocity of 50ms−¹. What is the total time spent by the ball in the air? (g = 10ms−²)

A. 2.5s
B. 5.0s
C. 10.0s
D. 15.0s
E. 20.0s

Correct Answer:

Option C = 10.0s

Explanation

Time to move up:

V = U – gt
0 = 50 – 10t
t = 5.

Total time spent on air = 2t = 10.0s