Solution of task 16.2.1 from the collection of Kepe OE
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16.2.1
A disc of mass m = 1 kg flies in a vertical plane according to the equations: xc = 0; Cc = 14 (1 -e-0.981t) -10t; Φ = 3t. At the time t = 0.5 s, determine the value of the principal vector of external forces. (Answer 8.25)