Question

a stone is dropped freely from 45 m height of the tower it reaches the ground in 3 seconds calculate acceleration due to gravity of that stone. ​

Answer 1

9.8m/s²

Step-by-step explanation:

Gravity is a constant. None of the other information is relevant since gravity is always 9.8m/s²

If you want to calculate it out, here it is.

distance = acceleration X time² / 2

45 = a x (3)² / 2

45 = a x 9 / 2

90 = a x 9

a = 10

So this question would suggest that gravity was 10m/s²