A web page designer creates an animation in which a dot on a computer screen has a position of r= [3.5 cm + (2.8 cm/s2)t2]i + (5.4 cm/s)t.j(adsbygoogle = window.adsbygoogle || []).push({});

(a) Find the magnitude and direction of the dot's average velocity between t = 0 and t = 2.2 s

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# Homework Help: Help with vectors!

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