A smooth circular table is surrounded by a rim whose interior is vertical . A ball is projected along the table from a point on the rim in a direction making an angle theta to the radius through the point and returns to the point of projection after two impacts . If e be the coefficient of restitution, then

A smooth circular table is surrounded by a rim whose interior is verti

1.	A smooth circular table is surrounded by a rim whose interior is vertical . A ball is projected along the table from a point on the rim in a direction making an angle theta to the radius through the point and returns to the point of projection after two impacts . If e be the coefficient of restitution, then
Answer» `tan THETA = SQRT(((E^(3))/( 1+ e + e^(2))))` `tan theta sqrt((e^(2))/( 1+ e))` `tan theta= sqrt((1)/( e ))` `tan theta = e ` ANSWER :A

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