2. An automobile traveling along a straight road increases its speed from 30.0 m/s to 50.0 m/s in a
nce of 180 m. If the acceleration is constant, how much time elapses while the au
distance?
(A) 6.00 s
(B) 4.50 s
(C) 3.60 s
(D) 4.00 s
(E) 9.00 s
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統計: A(0), B(9), C(1), D(0), E(0) #3224648
統計: A(0), B(9), C(1), D(0), E(0) #3224648