Time of flight and horizontal range of a projectile are related by gt² = 2R . find the angle of projection .
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Answer:
75.96°
Explanation:
gt² = 2R
R = gt²/2 = u²sin²∝/2g = u²sin2∝/g
sin2∝ = sin²∝/2 , ∝≠ 0
sin∝ = 4 cos ∝
tan ∝ = 4
∝ = tan∧-1 (4) = 75.96°
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