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A bowler projects an 8.5-in.-diameter ball weighing 16 lb along an alley with a forward velocity v0 of 25 ft/s and a backspin ω0 of 9 rad/s. Knowing that the coefficient of kinetic friction between the ball and the alley is 0.10, determine (a) the time t1 at which the ball will start rolling without sliding, (b) the speed of the ball at time t1.
Fig. P17.78
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