The bar is supported at A and at B, and a known force is applied at C. An incomp

Question

The bar is supported at A and at B, and a known force is applied at C.

An incomplete FBD is shown: the direction of the force at A known, but the sense is undetermined, the senses of both components of force at B are undetermined.

Using equilibrium qualitatively, the sense of the force at A is:

C. cannot determine sense of A

After thinking about the force at A, try to use equilibrium qualitatively to determine the senses of Bx and By:

The sense of Bx is:

C. cannot determine sense of Bx

The sense of By is:

C.cannot determine sense of By

Explanation / Answer

1.B

2.B

3.C

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