Solution of task 7.2.1 from the collection of Kepe OE

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Solution of task 7.2.1 from the collection of Kepe OE

7.2.1
The equation of motion of the point r = t2i + 2 tj + 3k is given. Determine the modulus of the velocity of a point at time t = 2 s. (Answer 4,47)

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