The formula d = 16 t2 gives the distance d, in feet, that an object has fallen t seconds after it is dropped from a bridge. A rock was dropped from the bridge and its fall to the water took 4 seconds. According to the formula, what is the distance from the bridge to the water?
A)16 feet
B)64 feet
C)128 feet
D)256 feet
E)4,096 feet

Question

Quizplus · Accepted Answer

The formula d = 16t^2 is used to calculate the distance fallen. Substituting t = 4 seconds into the formula gives d = 16 * (4^2) = 16 * 16 = 256 feet.

The Formula D = 16 T2 Gives the Distance D