55. A wheel of radius 0.5 m rolls without sliding on a horizontal surface as shown. Starting from rest, the wheel moves with constant angular acceleration 6 rad/s2. The distance in traveled by the center of the wheel from t = 0 to t = 4 s is:
(A) 0m
(B) 12m
(C) 24m
(D) 48 m
(E) None of these
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統計: A(0), B(0), C(15), D(3), E(0) #3081295
統計: A(0), B(0), C(15), D(3), E(0) #3081295