ib-Tutorial 1 - EG1109 STATICS and MECHANICS OF MATERIALS...

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EG1109 STATICS and MECHANICS OF MATERIALS INQUIRY-BASED TUTORIAL NO. 1 1. Construct free body diagram of (a) of the pulley shown in Fig. 1, (b) each cylinder shown in Fig. 2, and (c) each block in Fig. 3, each modelled as a particle. 2. The four-bar mechanism ABCD in Fig. 4 is attached by a spring at its left end to a rigid wall and by a rigid bar at its right end to the right wall. The spring constant k = 10.2 kN / m . Initially, when a = 0, all bars are horizontal and the spring tension is 200 N . The load P is then applied, and the bars open to the position shown. Find the force P required to cause this deformation. B P A D 100kg 3.2 m 1.6 m 1.2 m C E Pulley ACB is one cable & DE is another cable Fig. 1 Fig. 2 α R R θ β Fig. 3 m 2 m 1 m 2 m 1 Fig. 4 P P a = 0.25 m a = 0.25 m D C B A k = 10.2 kN/m 0.5 m
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3. The Leaning Tower of Pisa, Italy, built in 1350, is 58.2 m tall and has a circular base of diameter 19.6 m . For the past several centuries, its longitudinal axis has been inclined by 5.6 o toward the
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ib-Tutorial 1 - EG1109 STATICS and MECHANICS OF MATERIALS...

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