Solution of task 13.3.20 from the collection of Kepe OE

Solution of task 13.3.20 from the collection of Kepe OE

13.3.20
A material point M of mass m = 1.6 kg moves from a state of rest in a horizontal plane along a circle of radius R = 12 m under the action of the force F = 0.2t. Determine the speed of the point at time t = 18 s, if the force forms a constant angle of 25 ° with the velocity vector. (Answer 3.38)