HW12 - g ENGINEERING MECHANICS ~ STATICS, 2nd. Ed. 6*5 Draw...

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Unformatted text preview: g ENGINEERING MECHANICS ~ STATICS, 2nd. Ed. 6*5 Draw a free~body diagram for the curved bar shown in Fig. P6-5. SOLUTION The cable at B exerts a tensile forco T on the bar that is tangent to the cable at point B. The action of the pin at support C is represented by force components 6 and C . x y 5~6 Draw a free-body diagram for the angle bracket shown in Fig. P6~6. ' SOLUTION The action of the pin at support A is represented by force components fix and Ky. The roller at B exerts a compressive force 3 normal to the surface of the bracket. ‘ ENGINEERING MECHANICS ~ STATICS, 2nd, Ed. w. F. RILEY AND L. D. STURGES 5 6-11 Draw a freewbody diagram for the cart shOWH in Fig. P6—11 which has a weight g. SOLUTION The cable exerts a force T on the cart that is tangent to the cable at the point of attachment. The weight W of the cart acts through the center of gravity G of the cart and is directed toward the center of the earth. The support surface exerts normal forces 31 and NE on the wheels since the surface is assumed to be smooth. Draw a freewbody diagram for the lawn mower shown in Fig. 96—12 which has a weight w and is resting on a rough surface. SOLUTION The weight W of the mower acts through the center of gravity G of the mower and is directed toward the center of the earth. The support surface exerts normal forces N1 and 32 and frictional forces ?1 and ?2 on the wheels since the surface is assumeé to be rough. D. STURGES : ENGINEERIKG MECHANICS ~ STATICS, 2nd. Ed. W. F. RILEY AND L. 6~30 Draw a free—body diagram for the bent bar shown in Fig. ?6*30. Supgorts at B and C are ball bearings. The horizontal and vertical surfaces at A are smooth. SOLUTION The smooth horizontal and vertical surfaces at A exert forces fix and no A z the two surfaces. The ball bearings on the bar that are normal to at supports B and C are represented by force components fix and §Y at bearing B and force components fix and éy at bearing C. 4) ...
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This note was uploaded on 07/05/2010 for the course ENGR 120 taught by Professor Jones during the Spring '10 term at Florida State College.

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HW12 - g ENGINEERING MECHANICS ~ STATICS, 2nd. Ed. 6*5 Draw...

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