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Fundamental Problem 5.9 The rod is supported by smooth journal bearings at A , B

ID: 1629076 • Letter: F

Question

Fundamental Problem 5.9

The rod is supported by smooth journal bearings at A, B, and C and is subjected to the two forces F1 = 320 N and F2 = 690 N .

Part A

Determine the x and y components of reaction at C using scalar notation.

Express your answers using three significant figures separated by a comma.

-1040,-320

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Correct

Part B

Determine the x and z components of reaction at B using scalar notation.

Express your answers using three significant figures separated by a comma.

2390,1167

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Incorrect; Try Again

Part C

Determine the x and z components of reaction at A using scalar notation.

Express your answers using three significant figures separated by a comma.

1355,477

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Incorrect; Try Again

Fundamental Problem 5.9

The rod is supported by smooth journal bearings at A, B, and C and is subjected to the two forces F1 = 320 N and F2 = 690 N .

(Figure 1)

Part A

Determine the x and y components of reaction at C using scalar notation.

Express your answers using three significant figures separated by a comma.

Cx, Cy =

-1040,-320

  N  

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Correct

Part B

Determine the x and z components of reaction at B using scalar notation.

Express your answers using three significant figures separated by a comma.

Bx, Bz =

2390,1167

  N  

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Incorrect; Try Again

Part C

Determine the x and z components of reaction at A using scalar notation.

Express your answers using three significant figures separated by a comma.

Ax, Az =

1355,477

  N  

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2 0.6 m 0.6 m 0.6 m 0.4 m

Explanation / Answer

Part A

Cx*0.4 + F2*0.6 = 0

or, Cx = - 690*0.6/0.4 = - 1035 N

Cy + F1 = 0

or, Cy = -320 N

Part B.

Bx = 0

Bz + F2 = 0

or, Bz = - 690 N

Part C.

Ax= 0

Az = 0