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
Explanation
Time to move up:
V = U – gt
0 = 50 – 10t
t = 5.
Total time spent on air = 2t = 10.0s