Assignment 13 

Understanding of potential energy and the work-energy theorem are reinforced.  Uniformity of acceleration for an object rolling along an inclined plane is tested.  Data obtained in an earlier experiment on a rotating object as it coasts to rest are analyzed to determine how the angular velocity of the object changes with clock time.

The Introductory Problem Sets introduce potential energy and the work-energy theorem.

qa problems focus on work and kinetic energy.

The 'seed' problem analyzes a projectile with purely horizontal initial velocity (i.e., with zero initial vertical velocity) for the ideal situation in which vertical acceleration is the acceleration of gravity and horizontal acceleration is zero.  The key to the analysis is that while acceleration remains uniform, the vertical and horizontal motions are independent of one another.

One lab exercise tests the uniformity of acceleration of a ball rolling along a ramp.  Another explores angular velocity vs. clock time for a rotating object as it coasts to rest.

In the class notes we calculate the energy required to stretch a rubber band, and analyze a 'rail' as it slides down an incline and as it slides across the floor.

The text assignment continues with the analysis of acceleration and forces for a variety of situations.