本题目来源于试卷: Work Energy and Power，类别为 美国物理杯赛(Physics Bowl)
[单选题]
02.32: An automobile engine delivers 24,00lkjsrnlfm+r .19( e-y0y *( a(s44r5okiyx3 . mgvkn:eo(syff watts (about 32 horsepower) of power to a car's driving wheels. If the car maintains a constant speed of 30 m/s (about 65 mph), what is the magnitude of the retarding force acting on the carma. s okv34*r oxe5(i(:kf(nsygy4f y?
A. 800N
B. 960N
C. 1950N
D. 720000N
E. 72000N
参考答案: A
本题详细解析:
暂无
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