Extracted text: 7-2. The bar is supported by a roller constraint at B, which allows vertical displacement but resists axial load and moment. If the bar is subjected to the loading shown, determine the slope at A and the deflection at C. El is constant. 7–3. Determine the slope at C, and the deflection at B of the bar in Prob. 7–2. 200 lb C 8 ft 8 ft- Probs. 7-2/3