Question: Figure shows a dumbbell with two equal masses (to be considered as point masses) attached to a very thin (massless) rod of length L. (a)

Figure shows a dumbbell with two equal masses (to be considered as point masses) attached to a very thin (massless) rod of length L.

(a) Show that the period of this pendulum is a minimum when the pivot point P is at one of the masses.

(b) Find the period of this physical pendulum if the distance between P and the upper mass is L/4.

05kg 2.0m 0.5 kg

05kg 2.0m 0.5 kg

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