1. consider three objects: object a is a hoop of mass m and radius r; object b is a sphere
of mass 2m and radius ; object c is a disk of mass 3m and radius r. show work and draw
a picture.
a. which has the greatest rotational inertia?
b. which has the smallest rotational inertia?

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.