April 28, 2015

Homework Help: Math/calculus

Posted by lola on Friday, July 13, 2012 at 9:29pm.

a toy rocket is shot into the air at the top of a building so that its height above the ground t seconds after the rocket is launched is given by the formula h(t)= -3t cubed + 6t squared + 27t feet from liftoff until the rocket crashes into the ground. Find the maximum height height that the rocket achieves, the speed at which it crashes into the ground and the exact time it reached its maximum height.What is the instantaneous velocityat which the rocket nis thrown and two seconds after it is launched. What is the average velocityfor the first 2 seconds after it is launched. Alot I know but I cannot seem to catch onto the formulas!

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