A dumbbell (▶ Figure 6.18) has a connecting bar of negligible mass. Find the location of the center of mass (a) if m1 and m2 are each 5.0 kg and (b) if m1 is 5.0 kg and m2 is 10.0 kg. THINKING IT THROUGH. This Example shows how the location of the center of mass depends on the distribution of mass. In part (b), you might expect the center of mass to be located closer to the more massive end of the dumbbell.

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y (m) 0.20 m m1 0.10 m m2 1x (m) 0.20 0.40 0.60 0.80 1.00 FIGURE 6.18 Location of the center of mass See Example 6.15 for description.