Author(s) Scott Holloway
Balance and center of massStandards
Students know how to solve two-dimensional problems involving balanced forces (statics) .
Prior knowledge & experience:
Why do you put your arms out to help you balance?
Where is the center of mass of an object? How does an object actually balance?
An object will balance when the center of mass is located directly over the "foot" of an object. That foot can be very narrow as long as it remains below the center of mass.
An object only balances on a regular (ie. flat) surface.
The center of mass is in the geographic middle of an object.
Photographs and Movies