8.108: The impulse applied to the cake is mv mgt μ J = = k1 , where m is the mass of the cake and v is its speed after the impulse is applied. The distance d that the cake moves during this time is then . 2 1 k 2 1 gt d μ = While sliding on the table, the cake must lose its kinetic energy to friction, or ( 29 . 2 2 1 2 k mv d r
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