JEE Main 2005 Physics question

PhysicsMotion in a PlaneJEE Main 2005

A particle is projected from a point O with velocity at an angle of with the horizontal. When it is moving in a direction at right angles to its direction at O, its velocity then is given by

Answer: (4)

Solution

The horizontal component stays constant. A direction perpendicular to the initial one (60° above horizontal) is

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Question ID VK-038519