A car (of mass 1500 kg) and a small truck (of mass 2000 kg) collide suddenly at right
angles at an icy intersection. The car was originally traveling eastward at 20.0 m/s and the
truck was traveling northward at 20.0 m/s just before the collision took place. What is the
speed of the combined wreck just after the collision if the vehicles become enmeshed?
Correct Answer:
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