Solution of task 13.3.23 from the collection of Kepe OE

Solution of task 13.3.23 from the collection of Kepe OE

13.3.23
A material point of mass m = 15 kg moves from a state of rest along a smooth guide of radius R, located in the horizontal plane, under the action of the force F = 0.5t. Determine the speed of the point at time t = 30 s, if the force forms a constant angle of 50 ° with the velocity vector. (Answer 9.64)