Problem 4.28 Five forces act on a link in the gear- shifting mechanism of a lawn mower. The vector sum of the five forces on the bar is zero. The sum of their 25 EN moments about the point where the forces A, and A, act is zero. (a) Determine the forces A,, Ay, and B. (b) Determine the sum of the moments of the forces about the point where the force B acts. 650 mm 30 kN 450 mm 45 Solution: The strategy is to resolve the forces into z- and y-components, determine the perpendicular distances from B to the line of action, determine the sign of the action, and compute the mo- - 650 mm - +350 mm- ments. Ans. (a) Ay=-29.76 KN Ax=18.09 KN F,- 25 kN 20 650 mm F,- 30 kN B=-20.38 KN 450 mm (b) м-0 350 mm 650 mm

Problem 4.28 Five forces act on a link in the gear- shifting mechanism of a lawn mower. The vector sum of the five forces on the bar is zero. The sum of their 25 EN moments about the point where the forces A, and A, act is zero. (a) Determine the forces A,, Ay, and B. (b) Determine the sum of the moments of the forces about the point where the force B acts. 650 mm 30 kN 450 mm 45 Solution: The strategy is to resolve the forces into z- and y-components, determine the perpendicular distances from B to the line of action, determine the sign of the action, and compute the mo- - 650 mm - +350 mm- ments. Ans. (a) Ay=-29.76 KN Ax=18.09 KN F,- 25 kN 20 650 mm F,- 30 kN B=-20.38 KN 450 mm (b) м-0 350 mm 650 mm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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