Two projectiles are fired with the same initial speed such that they have equal…

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

Two projectiles are fired with the same initial speed such that they have equal horizontal ranges. If the time of flight of the second projectile is twice that of the first, which pair of projection angles is possible? (a) (30∘,  60∘)(30^{\circ},\;60^{\circ}) (b) (28∘,  62∘)(28^{\circ},\;62^{\circ}) (c) (26∘,  64∘)(26^{\circ},\;64^{\circ}) (d) (22∘,  68∘)(22^{\circ},\;68^{\circ})

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