A Mobile Is Constructed from a Metal Bar and Two

question 34

Multiple Choice

A mobile is constructed from a metal bar and two wooden blocks as shown in the figure.The metal bar has a mass of 2.0 kg and is 12 cm long.There is a 3.0-kg wooden block hanging from the left end of the metal bar and a string to support the mobile is tied to the metal bar at a distance of 3 cm from the left end.How large of a wooden block should be hung from the right end of the bar to keep the bar level?

• A)0.33 kg
• B)0.50 kg
• C)1.0 kg
• D)2.0 kg
• E)3.0 kg

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