Two cars are initially 10.5 km apart on a straight road. If the cars are moving toward each other, car 1 with a speed of 9.5 m/s and car 2 with a speed of 10.40 m/s, how many seconds will it take before the cars meet?

Answer 1

10.5 km = 10,500 m.

V1*t + V2*t = 10,500.
9.5t + 10.4t = 10,500.
19.9t = 10,500.
t = 528 s.