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Throwing and Catching at Same Height

Two projectil...

Question

Two projectiles A and B are projected with angle of projection 15° for the projectile A and 45° for the projectile B. If R_A and R_B be the horizontal range for the two projectiles, then
(a) R_{A <} R_B
(b) R_A > R_B
(c) R_A = R_B
(d) the information is insufficient to decide the relation of R_A with R_B_.

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Solution

(d) The information is insufficient to decide the relation of R_A with R_B.

Horizontal range for the projectile, $R = \frac{u^{2} \sin (2 α)}{g}$
Information of the initial velocity is not given in the question.

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