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
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