When is the line of action method useful in calculating torque?

posted Oct 21, 2018, 11:43 AM by Barbara Fortunato   [ updated Oct 22, 2018, 5:39 AM by Barbara Fortunato ]
M 10/22 lab

Daily Quiz: line of action method

Today, we'll finish the Hard Torque Problems that we started last time.  

During the second hour of lab, we'll start the Ladder Lab.

1. T3 = 250N, m = 40kg
2. T2 = 3700N, Fhy = 2350N down, Fhx = 1850N right 
3. T2 = 600N, Fhx = 520N left, Fhy = 50N up
4. T1 = 289N, Fhx = 289N right, Fhy = 350N up
5. Fwall = 727N, Ff = 727N, Fground = 1230N
6. 51.3 degrees (there's a typo, it should say "minimum angle")
Handout:  Ladder Lab
Homework:  Watch the video below on center of mass:

Center of Mass (sciencetheater)

Also watch this video:

Tip or slip? (Doc Schuster)