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xzibition8612
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Homework Statement
Two points P and Q have position vectors in a reference frame that are given by rOP = 50ti and rOQ = 40i - 20tj meters. Find the minimum distance between P and Q and the time at which this occurs.
Homework Equations
The Attempt at a Solution
I suppose I take the magnitude of each vector, but then what? They both share the same origin, how do i manipulate it so that they give me the PQ length?