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JEE Main Physics question

PhysicsMotion in a PlaneJEE Main

Two boys are standing at the ends and of a ground where . The boy at starts running in a direction perpendicular to with velocity . The boy at starts running simultaneously with velocity and catches the other boy in a time , where is

Answer: (B)

Solution

At time , boy has moved perpendicular to . For the boy at (speed ) to reach him:

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Question ID VK-151955