Homework Help: physics

Posted by tommy on Tuesday, September 7, 2010 at 1:27pm.

A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 130 m.
(a) What is the maximum height reached by the rocket?

(b) How long after lift-off does the rocket reach its maximum height?
s

(c) How long is the rocket in the air?
s

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