Solution of task 14.3.17 from the collection of Kepe OE

Solution of task 14.3.17 from the collection of Kepe OE

14.3.17
The modulus of the momentum vector of the mechanical system varies according to the law Q
= 4t2. Determine the modulus of the principal vector of external forces acting on the system, at the moment
Time t = 2 s, if the vector of momentum and the principal vector of external forces are parallel.
(Answer 16)