Posted by **Tim** on Monday, February 17, 2014 at 6:52pm.

For a given initial projectile speed, you observe that the projectile has a certain range R at a launch angle A = 30 degrees. For what other launch angle will the projectile have the same range (assuming the same initial projectile speed)? Without the use of mathematical formula give a conceptual argument as to why this angle gives the same range (think about the tradeoffs between time-of-flight and horizontal component of velocity in your answer).

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