Alphonse moves eastward in a car at 30 m/s. Velma, moving eastward in a train at 70 m/s, passes him. Alphonse's velocity relative to Velma is

A) 40 m/s westward.
B) 100 m/s eastward.
C) 40 m/s eastward.
D) 30 m/s westward.
E) 100 m/s westward.


A

Physics & Space Science

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A. -2900 J B. -1700 J C. 2900 J D. 1700 J E. 0 J

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