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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A billiards player hits a stationary ball by an identical ball to pocket the target ball in a corner pocket that is at an angle of 35° with respect to the direction of motion of the first ball. Assuming the collision as elastic, and that friction and rotational motion are not important, the angle made by the target ball with respect to the incoming ball is

Answer: (C)

Solution

For an elastic collision between equal masses with one initially at rest, the two balls always separate at a right angle (90°) to each other

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Question ID VK-154029