If it takes an object 3s to fall freely to the ground from a certain height, what is the distance covered by the object?
- 90 m
- 30 m
-
45 m
- 60 m
The correct answer is: C
Explanation
S = (1)/2gt2S = (1)/2 x (10)/1 x 32 =5 x 9 = 45 m
There is an explanation video available .