A1100 kg automobile is at rest at a traffic signal. at the instant the light turns green, the automobile starts to move with a constant acceleration of 5.0 m/s2. at the same instant a 2000 kg truck, traveling at a constant speed of 7.0 m/s, overtakes and passes the automobile. a)how far is the com of the automobile-truck system from the traffic light at t=3.0 s? b)what is the speed of the com then?
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A1100 kg automobile is at rest at a traffic signal. at the instant the light turns green, the automo...
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