Asked by Mykmoloko

A projectile is launched upward at an angle of 75 from the horizontal and strikes the ground a certain distance away. For what other angle would it have the same range?
Answered by drwls
The range of a projectile is proportional to sin A cos A. If you change the launch angle (A) to its complement (15 degrees in this case), you get the same result.
Answered by Mykmoloko
wow! thank you for your help. I thout there is no one who can help me.
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