Question

Two cars P and Q start from a point at the same time
in a straight line and their position (in metre) are
represented by xp(t) = 4t - 22 and xo(t) = -8t + t2. At
what time, their relative velocity is zero? (where t is in
seconds​

Answer 1

Answer:

I also don't know the answer

Answer 2

Answer:

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