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As we discussed in class, a meter stick can be approximated by discrete set of masses connected by a massless rod. For a uniform meter
As we discussed in class, a meter stick can be approximated by discrete set of masses connected by a massless rod. For a uniform meter stick, we can assume that all masses are the same and they are equally spaced. For example, if the meter stick is composed by N total particles, where N is a large whole number, each one will have mass M /N (where M is the total mass of the ruler) and the space between adjacent particles will be 1 / (N 1) meters. a) If we align the meter stick with the :1: axis and set the origin to be at the point were the ruler marks 0cm, nd the mass and the position of the kth particle. (Hint: Start with simpler cases, such as N = 2, 3, 4 and then try to generalize it to general N) b) Show that the center of mass for this configuration always has its center of mass at 50 cm mark, no matter the value of N
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