a 1100kg auto is at rest at a traffic signal. At theinstant the light turns green, the auto starts to move with aconstant acceleration of 3.9m/s^2. At same instant a 2300kgtruck, traveling at a constant speed of 6.7m/s overtakes and passesauto.
A. how far is the com of the auto-truck system from the traffic light at t=1.6s?
B. what is the speed of the com of the auto-truck system then?