Let A = 58.0 cm at 270° measured from the horizontal. Let B with arrow = 78.0 cm at some angle θ. (a) Find the magnitude of A + B as a function of θ. (Use the following as necessary: θ.) |A with arrow + B with arrow| = (b) From the answer to part (a), for what value of θ does |A with arrow + B with arrow| take on its maximum value? θ = ° What is this maximum value? cm (c) From the answer to part (a), for what value of θ does |A with arrow + B with arrow| take on its minimum value? θ = ° What is this minimum value? cm (d) Without reference to the answer to part (a), argue that the answers to each of parts (b) and (c) do or do not make sense.
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