Question

A stone is dropped from a 196-foot platform. Use the formula h=−16t2+v0t+196 to determine how many seconds it will take for the stone to hit the ground. (Since the stone is dropped, v0=0.) Round your answer to the nearest tenth.

Answer 1

16t^2 = 196

t^2 = 196/16

t^2 = 12.25

t = sqrt(12.25)

t = 3.5

So roughly 3.5 seconds

Answer 2

T=3.5 would be the correct answer