A rock is thrown upward with a velocity of 28 meters per second...

Question

A rock is thrown upward with a velocity of meters per second from the top of a meter high cliff, and it misses the cliff on the way back down. When will the rock be meters from the water, below? Round your answer to two decimal places.

Answer 1

The statement of this problem is incomplete.

How high is the cliff? We'll call it H meters

"... from the top of a H meter cliff"

We need to know what is the height of the cliff, h.

When will the rock be ???? meters from the water below?

How many meters above the water is the rock supposed to be???

Use f(t) = -16t^2 + 28t+ H where H is the height of the cliff