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
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)
![A ball bearing is projected vertically upwards from the ground with a velocity of 15ms‾¹. Calculate the time taken by the ball to return to the ground [g = 10ms‾²]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A ball bearing is projected vertically upwards from the ground with a velocity of 15ms‾¹. Calculate the time taken by the ball to return to the ground [g = 10ms‾²]")
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