PHYS 200: Fundamentals of Physics

Lecture 11 - Torque << previous session | next session >>

Overview:

This lecture is a continuation of an analogue to Newton's law: τ= lα. While previous problems examined situations in which τ is not zero, this time the focus is on extreme cases in which there is no torque at all. If there is no torque, α is zero and the angular velocity is constant. The lecture starts with a simple example of a seesaw and moves on to discuss a collection of objects that are somehow subject to a variety of forces but remain in static equilibrium.

Reading assignment:

Wolfson and Pasachoff, Physics with Modern Physics, chapters 13-14.

Class lecture:

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Resources:

Problem Set 6 [PDF]
Problem Set 6 Solutions [PDF]
Sample Midterm Examination [PDF]