Solution: Angled bar ACB is supported by a pin at A and a roller reaction at B. The bar is loaded with a 4000 Nm couple as shown. Draw a complete free body diagram of bar ACB. Determine the magnitude of the reaction force at the roller support at B. Determine the magnitudes of the reactions at pin A. If the 4000 Nm applied moment were shifted to the end of the angled bar, would the magnitude of N increase, decrease, or remain the same?

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Angled bar ACB is supported by a pin at A and a roller reaction at B. The bar is loaded with a 4000 Nm couple as shown. Draw a complete free body diagram of bar ACB. Determine the magnitude of the reaction force at the roller support at B. Determine the magnitudes of the reactions at pin A. If the 4000 Nm applied moment were shifted to the end of the angled bar, would the magnitude of N increase, decrease, or remain the same?