Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.
A ruler is exactly 6 inches long. It has a linear mass density of 60 grams per inch; that means that a piece of the ruler 1 inch long has a mass of 60 grams.
Q: What is the mass of one inch of the ruler? Q: What is the total mass of this ruler?
Now, let's consider one little piece of this ruler: I'll mark it with a dark blue color.
Q: What is the mass of this little piece?
Q: What is the contribution of this little piece
to the equation for center of mass?
Q: What is the location of the center
of mass of the ruler in the horizontal direction?
The answers
Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.