Question : If the horizontal range of a projectile is four times its maximum height, the angle of projection is:
Option 1: 30o
Option 2: 45o
Option 3: sin-1(1/4)
Option 4: tan-1(1/4)
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Correct Answer: 45 o
Solution : The correct option is 45 o .
A projectile's angle of projection is 45 o if its horizontal range is four times its height. This can be inferred from the relationship between a projectile's horizontal range and its maximum height.
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