Solution of task 7.8.20 from the collection of Kepe OE

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7.8.20
The point moves along a curvilinear trajectory with tangential acceleration am = 2 m / s2. Determine the angle in degrees between the velocity vectors and the full acceleration of the point at time t = 2 s, when the radius of curvature of the trajectory? = 4m, if for t0 = 0 the velocity of the point is v0 = 0. (Answer 63.4)

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