A car driver drives to the north on a straight two-lane road at a constant
speed of 80 km/h. A truck driver traveling to the south at a constant speed
of 100 km/h approaches the first car (in the other lane).
i) What is the truck velocity relative to the car?
ii) What is the car velocity relative to the truck?
iii)Do the relative velocities change after the truck and the car passed each
other? Why?
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