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PROJECTIONS (2021)

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A projectile can have same range \( R \) for two angles of projection. It \( t_{1} \) and \( t_{2} \) are the times of flight in the two cases, then what is the product of two times of flight?
(1) \( t_{1} t_{2} \propto R^{2} \)
(2) \( t_{1} t_{2} \propto R \)
(3) \( t_{1} t_{2} \propto \frac{1}{R} \)
(4) \( t_{1} t_{2} \propto \frac{1}{R^{2}} \)
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