9. 4 Find the center of mass of the motorcycle plus its riders shown in Figure 5

Question

9. 4

Find the center of mass of the motorcycle plus its riders shown in Figure 5.30, given the following information: the rider has a mass of 67.5 kg and his center of mass is 1.20 m above the wire; the motorcycle's mass is 125 kg and its center of mass is 0.300 m above the wire; and the passenger and swing have a mass of 70.0 kg and their center of mass is 1.75 m below the wire. The CMs are all on the same vertical line.
1      cm 2---Select---above the wirebelow the wire     

Find the center of mass of the motorcycle plus its riders shown in Figure 5.30, given the following information: the rider has a mass of 67.5 kg and his center of mass is 1.20 m above the wire; the motorcycle's mass is 125 kg and its center of mass is 0.300 m above the wire; and the passenger and swing have a mass of 70.0 kg and their center of mass is 1.75 m below the wire. The CMs are all on the same vertical line.

Explanation / Answer

CM =[67.5*1.2 +125*0.3+70*(-1.75)] /[67.5+125+70]

CM =-0.01523 m

CM= -1.52 cm

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