A projectile A is thrown at an angle 30° to the horizontal from point P. At the same time, another projectile B is thrown with velocity ν2 upwards from the point Q vertically below the highest point A would reach. For B to collide with A, the ratio v2v1 should be

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answer is C.

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Detailed Solution

Vertical component of velocity of projectile A should be equal to vertical velocity of projectile B. or v1sin30°=v2 or v12=v2∴ v2v1=12

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