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A smooth sphere of mass m is moving on a horizontal plane with a velocity 3hat(i) + hat(j) when t collides with a vertical wall which is parallel to the vector hat(j). If the coefficiet of restitution between the sphere and the wall is 1/4 The impulse hat(j) that acts on the sphere is |
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Answer» `(9M)/(2) HAT(i)` |
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