A ruler is exactly **L** inches long.
It has a linear mass density
which increases from one end of the ruler to the other:

lambda(x) = a + b*x where "x" is the distance from left end in inches Q: What are the units of a ? Q: What are the units of b ?

Q: What is the mass of the little piece shown? Q: What is the total mass of this ruler?

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.