Question: (a) While driving a car at (25 mathrm{~m} / mathrm{s}), you pass a truck traveling in the same direction at (22 mathrm{~m} / mathrm{s}). If

(a) While driving a car at $25 \mathrm{~m} / \mathrm{s}$, you pass a truck traveling in the same direction at $22 \mathrm{~m} / \mathrm{s}$. If you assign the direction in which the two vehicles are moving as the positive $x$ direction of a coordinate system, what is the truck's velocity relative to you?

(b) Now a motorcycle passes you at $29 \mathrm{~m} / \mathrm{s}$. What is its velocity relative to you?

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