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JEE Main Physics question

PhysicsMotion in a PlaneJEE Main

Four persons and are initially at the corners of a square of side length . If every person starts moving such that is always headed towards , towards , directly towards , and towards , then the four persons will meet after [IIT JEE 1984]

Answer: (A)

Solution

By the symmetry of the square, each pursuer's velocity component along the (instantaneously shrinking) line to its target always equals (since the target's

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Question ID VK-158328