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JEE Main Physics question

PhysicsLaws of MotionJEE Main

A boy whirls a stone in a horizontal circle of radius 1.5 m and at height 2.0 m above level ground. The string breaks and the stone flies off tangentially, striking the ground after travelling a horizontal distance of 10 m. The magnitude of the centripetal acceleration of the stone while it was in circular motion was

Answer: (A)

Solution

Time of fall: s. Tangential (launch) speed: $v = 10/0.639

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Question ID VK-157705