Multiple Choice
Two cars approach each other on a straight and level road. Car A is traveling at 75 km/h, due north and car B is traveling at 45 km/h, due south. Both velocities are measured relative to the ground.
-At a certain instant, the distance between the cars is 15 km. How long will it take, in seconds, from that instant for the two cars to meet?
A) 450 s
B) 900 s
C) 720 s
D) 1200 s
E) 1900 s
Correct Answer:

Verified
Correct Answer:
Verified
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