A 4000 kg truck is at rest at an intersection, waiting for a green light (with no other vehiclesaround)
Question
A 4000 kg truck is at rest at an intersection, waiting for a green light (with no other vehiclesaround). It
is a snowy and icy day, with no friction on the road. A 1000 kg car traveling at 5 m/s
strikes the stopped truck square on from behind. The bumpers of the two vehicles lock together
as a result of the collision, so that they skid across the intersection together.
How fast are they traveling?