At time t = 0, a particle of mass m is subjected to a force F = F sinωt in
x 0
the x-axis direction, and a force F = F cosωt in the y-axis direction. Find
y 0
the trajectory of the particle if at the initial moment it is at rest. What is the
average velocity of the particle over a large time? What initial velocity must
the particle have in order to move in the presence of these forces on a circle?
What is the radius of this circle?
3.6 Strain and stress. Wave’s speed