An orange fruit drops to the ground from the top of a tree 45m tall. How long does it takes to reach the ground? (g = 10m/s²)

by | Aug 31 | Physics WAEC | 0 comments

A. 3.0s
B. 4.5s
C. 6.0s
D. 7.5s
E. 9.0s

Correct Answer:

Option A – 3.0s

Explanation

s = ut + ½gt²

45 = 0 + 5t²

t = 3s