Homework H20.B Given: The quarter-circle block A (having a weight of W) is supported by wedge B. The weight of the wedge can be considered to be negligible. Find: Determine the minimum force P on the wedge that is required to lift the block. Write your answer in terms of W. Use the following: us= 0.2 and 0 = 20°. P Hs R smooth wwwwwwwwwwwww

Consider the frame shown in figure. Suppose that P1 = 5.5 k and P2 = 11 k. Each column has the cross-sectional area indicated. Solve the problem using the cantilever method of analysis. Assume that the internal moment, shear, and normal force in the vertical beam are positive if they act as shown. a) Determine (approximately) the normal force at A. NA = _____ k Submitted Answers ANSWER 1: Deduction: -3% NA = 4.973 k ANSWER 2: Deduction: -3% NA = 3.8254 k ANSWER 3: Deduction: -3% NA = 5.933 k

Solve the problem by the moment-area method. The beam has constant flexural rigidity EI. A simple beam AB supports two concentrated loads P at the positions shown in the figure. B C 4. 4 A support C at the midpoint of the beam is positioned at distance d below the beam before the loads are applied. Assuming that d = 12 mm, L = 5.4 m, E = 200 GPa, and I = 193 x 10° mm, calculate the magnitude of the loads P (in kN) so that the beam just touches the support at C. 163.87 x kN

The compound beam is subjected to a uniform dead load of 380 lb/ft and a uniform live load of 285 lb/ft. Assume B is a pin and C is a roller. Follow the sign convention. (Figure 1) Figure A 5 ft 00 B 5 ft D 5 ft C 1 of 1 Part A Determine the negative bending moment at A with the maximum magnitude. Express your answer using three significant figures. ΠΑΣΦ (MA)max(-) = Submit Part B (VD) max(+) Request Answer Determine the maximum positive shear at D. Express your answer using three significant figures. Submit = ΑΣΦ ↓↑ vec Request Answer vec ? ? k.ft lb