If it takes an object 3s to fall freely to the ground from a certain height, what is the distance covered by the object?
-
A.
90 m -
B.
30 m -
C.
45 m -
D.
60 m
Correct Answer: Option C
Explanation
S = (1)/2gt2
S = (1)/2 x (10)/1 x 32 =5 x 9 = 45 m
S = (1)/2gt2
S = (1)/2 x (10)/1 x 32 =5 x 9 = 45 m