What is the particles direction of motion

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Q. An automobile and a truck start from rest at the same instant, with the automobile initially at some distance behind the truck. The truck has a constant acceleration of 2.01 , and the automobile an acceleration of 3.31 . The automobile overtakes the truck after the truck has moved a distance 31.0 .

Q. A particle's trajectory is described by x = (1/2*t^3 - 2*t^2) m and y = (1/2*t^2 - 2*t) m, where t is in s. What is the particle's direction of motion, measured as an angle from the x-axis, at t = 0 s? What is the particle's direction of motion, measured as an angle from the x-axis, at t = 3 s?

Reference no: EM1362174

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