SOLUTION: A rocket is fired straight up from ground level with an initial velocity of 800 ft/sec. When will the rocket hit the ground? You are standing on a cliff 200 feet high. How long

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Question 343579: A rocket is fired straight up from ground level with an initial velocity of 800 ft/sec. When will the rocket hit the ground?
You are standing on a cliff 200 feet high. How long does it take the rock to hit the ground after being dropped?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


You need a function that gives height as a function of time.



Where

is the height in feet at time

is the initial velocity in feet per second.

is the initial height in feet.

In both cases you want to solve for when

For your first problem:

feet per second and feet.

For your second problem:

feet per second and feet.

Next time READ THE INSTRUCTIONS. One question per post.


John

My calculator said it, I believe it, that settles it