In the figure here, a red car and a green car move toward each other in adjacent

Question

In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 218 m. If the red car has a constant velocity of20.0 km/h, the cars pass each other at x = 44.4 m. On the other hand, if the red car has a constant velocity of 40.0 km/h, they pass each other at x = 76.9 m. What are (a) the initial velocity (in km/h) and (b) the (constant) acceleration (in m/s2) of the green car? Include the signs. velcity must be in km/h!!

Explanation / Answer

20 km/hr = 5.55 m/s

find the time when they pass each other
44.4 / (5.55) = 8 secs

red car = (5.55) (8)
green car = 0.5(a)(8)

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