The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the fig.
y - projection of the radius vector of rotating particle P is :
1
y(t) = −3 cos2πt, where y in m
2
y(t) = 4 sin \(\left(\frac{\pi t}{2}\right)\), where y in m
3
y(t) = 3 cos \(\left(\frac{3 \pi t}{2}\right)\), where y in m
4
y(t) = 3 cos \(\left(\frac{\pi t}{2}\right)\), where y in m