A small object with mass 3.75kg moves counterclockwise with constant speed 1.25 rad/s in a circle of radius 3.05 m centered at the origin. It starts...

A small object with mass 3.75kg moves counterclockwise with constant speed 1.25 rad/s in a circle of radius 3.05 m centered at the origin. It starts at the point with position vector 3.05 î m. Then it undergoes an angular displacement of 9.40 rad.

Need help with Part (e) , (f) , and (g)