Approaching 9781

Two trolleys cross the platform at the station facing each other. One of them travels at a speed of 10.2 km/h, the other at a constant speed of 7.8 km/h relative to the platform. At what speed is the driver of the first cart approaching the driver of the second cart?

Correct answer:

v =  18 km/h

Step-by-step explanation:

v1=10.2 km/h v2=7.8 km/h  v=v1+v2=10.2+7.8=18 km/h



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