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A rocket is launched from rest and moves in a straight line at 70.0 degrees above...

A rocket is launched from rest and moves in a straight line at 70.0 degrees above the horizontal with an acceleration of 30.0 ?/?2m/s2. After 25.0 ?s of powered flight, the engines shut off and the rocket follows a parabolic path back to earth.  

1- Find the time of flight from launch to impact.

2- What is the maximum altitude reached?
3- What is the horizontal distance between the launch pad and the impact point?

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