February 28, 2017

Homework Help: physics

Posted by tina on Wednesday, April 25, 2012 at 10:32pm.

A catapult launches a rocket at an angle of 47.5° above the horizontal with an initial speed of 109 m/s. The rocket engine immediately starts a burn, and for 2.49 s the rocket moves along its initial line of motion with an acceleration of 30 m/s2. Then its engine fails, and the rocket proceeds to move in free-fall.
(a) Find the maximum altitude reached by the rocket.

Your response differs from the correct answer by more than 10%. Double check your calculations. m
(b) Find its total time of flight.
(c) Find its horizontal range.

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