01:750:271 Chapter 2: Chapter 2 Notes

A small object with a mass of 4.00 kg moves counterclockwise with a constant angular speed of 1.50 rad/s in a circle of radius 3.00 m centered at the origin.

a) It started at the point with cartesian coordinates (3m, 0). When its angular displacement is 9.00 rad, what is its position vector, int cartesian unit vector notation?

b) In what quadrant is the particle located, and what angle does its position vector make with the positive x-axis?

c) What is its velocity vector, in-unit vector notation?

d) In what direction is it moving? Make a sketch of the position and velocity vectors

e) What is its acceleration, expressed in unit-vector notation?

f) What total force acts on the object? (Express your answer in unit vector notation)