SOLUTION: help please and thank you A launched rocket has an altitude, in meters, given by the polynomial h+vt-4.9t^2, where h is the height, in meters, from which the launch occurs, at v

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Question 380509: help please and thank you
A launched rocket has an altitude, in meters, given by the polynomial h+vt-4.9t^2, where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the rocket is airborne. If a rocket is launched from the top of a tower 70 meters high with an initial upward speed of 80 meters per second, what will its height be after 2 seconds?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


All you have to do is plug in the numbers and do the arithmetic.

The actual function should be rendered thus:



Where is the height as a function of time, , is the initial velocity, and is the initial height. For your situation you would write:



And you want the value of the function at time , so:



Then just do the arithmetic.

John

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