35.  A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 60.0° above the horizontal. The rocket is fired toward an 11.0-m-high wall, which is located 27.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall?

First find the time it takes for the rocket to travel 27.0 m.  Then use that time to find out how high the rocket is.

Solve for t

 

For vertical motion we get

 

 

 

How much the rocket clears is

 

 

 

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This page last updated on January 11, 2020