A particle's trajectory is described by x=((1/2)t^3 - 2t^2) and y=((1/2)t^2-2t) , where t is in s.(adsbygoogle = window.adsbygoogle || []).push({});

What is the particle's speed at t= 4.5 s?

What is the particle's direction of motion, measured as an angle from the x-axis, at t=4.5 s?

I keep geting the wrong answers >:0 , how do I go about solving this?

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# Trajectory help

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