1.

hail storms are observed to strike the surface of the frozen lake at 30^° with the vertiocal and rebound at 60^° with the vertical.assume contact to be smooth , the coefficient of restitution is

Answer» hail storms are observed to strike the surface of the frozen lake at 30^° with the vertiocal and rebound at 60^° with the vertical.assume contact to be smooth , the coefficient of restitution is


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