An object is released from rest at a height of 25m. Calculate the time it takes to fall to the ground. [g = 10ms-2]
-
A.
25.00s -
B.
10.00s -
C.
2.50s -
D.
2.24s
Correct Answer: Option D
Explanation
t = (sqrt{frac{2s}{g}} = sqrt{frac{2 times 25}{10}} = 2.24)