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Secure l session.masteringphysics.com/myct/itemview?assignmentProblemID 75108684 University Physics at FDU Signed in as brianna thomas UPS 17-MP1 Problem 12.15 previous l 2 of 7 l nex Correct Problem 12.15 The three masses shown in the figur are Part B connected by massless, rigid rods. Find the y coordinate Express your answer to two significant figures and include the Figure 1 of 1 appropriate units. 200 g Value Units 10 cm 10 cm Submit My Answers Give Up 12 cm 100 g 100 g Part C Find the moment of inertia about an axis that passes through mass A and is perpendicular to the page

Explanation / Answer

Part B :

the height of the triangle is

h = ( 102 - 62 )1/2

h = ( 100 - 36 )1/2

h = 8 cm

the x and y coordinate of the system is ( x , y ) = ( 6 , 4 ) cm

Part C :

IA = 2 mB X 102

IA = 2 X 100 X 100

IA = 20000 g . cm2  

Part D :

IB = 200 X 82

IB = 200 X 64

IB = 12800 g.cm2   

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