歡迎來到Yogi老師解題給你看，今天我要講解的是AP Physics C Mechanics的問題
A 1400 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 2800 kg truck, traveling at a constant speed of 6.0 m/s, overtakes and passes the automobile.
(b) What is the speed of the center of mass of the com then?