Question

An object falls 16t2 feet in t seconds. You drop a rock from a bridge that is 75 feet above the water. Will the rock hit the water in 2 seconds? Explain.

In 2 seconds, the rock has fallen ?
feet.

Answer 1

No

Explanation:

in 2 seconds, it falls 16*2^2 = 64 feet < 75 feet

so it will be 75 - 64 = 11 feet above the water.