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The automobile with wheels 2.5 ft in diameter is traveling in a straight path at a rate of 60 ft/s. If no slipping occurs, determine the angular velocity of one of the rear wheels and the velocity of the fastest moving point on the wheel.
A. = 48 rad/s, vmax = 84.9 ft/s
B. = 24 rad/s, vmax = 84.9 ft/s
C. = 48 rad/s, vmax = 120.0 ft/s
D. = 24 rad/s, vmax = 120.0 ft/s
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23.

If the rim of the wheel and its hub maintain contact with the three stationary tracks as the wheel rolls, it is neccessary that slipping occurs at the hub A if no slipping occurs at B. Under these conditions, what is the speed at A if the wheel has an angular velocity ?
A. vA = (r2-r1)
B. vA = r1
C. vA = (r2-r1)
D. vA = r1

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