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

Question

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

Quizplus · Accepted Answer

The Answer of 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

A Mobile Is Constructed from a Metal Bar and Two