- #1
peasant242
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Homework Statement
Prove that a projectile launched at angle @ has the same horizontal range as one launched with the same speed at angle (90 - @).
Homework Equations
Obviously kinematics will be used =/
The Attempt at a Solution
I've been messing around with kinematics but haven't gotten anywhere. I also know that sin(90-@) = cos(@) . Help appreciated :]