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An elastic cube sliding without friction along a horizontal floor hits a vertical wall with one of its faces parallel to

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Question of Exercise 1

Electromagnetic Induction of Class 12

Question
An elastic cube sliding without friction along a horizontal floor hits a vertical wall with one of its faces parallel to the wall. The coefficient of friction between the wall and the cube is μ. The angle between the direction of the velocity v of the cube and the wall is α. For that angle α will the block will reflect perpendicularly.

Answer:

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