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AP® Physics C: Mechanics

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Train Relative Velocity

APPHMC-GVXDMJ

Two trains depart from one station, one going north at 30.0 miles per hour, and another going northeast (45° north of east) at 60.0 miles per hour.

At what rate does the distance between the two trains increase, in miles per hour?

A

12.4 mph

B

30.0 mph

C

40.0 mph

D

42.4 mph

E

44.2 mph