5.20 The unstretched length of the spring CD is 350 mm. Sup- pose that you want the lever ABC to exert a 120-N normal force on the smooth surface at A. Determine the necessary value of the spring constant k and the resulting reactions at B. C 20° 230 mm 450 mm B 180 mm 330 mm 300 mm Problem 5.20

5.20 The unstretched length of the spring CD is 350 mm. Sup- pose that you want the lever ABC to exert a 120-N normal force on the smooth surface at A. Determine the necessary value of the spring constant k and the resulting reactions at B. C 20° 230 mm 450 mm B 180 mm 330 mm 300 mm Problem 5.20

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

5.20 The unstretched length of the spring CD is 350 mm. Sup-
pose that you want the lever ABC to exert a 120-N normal force
on the smooth surface at A. Determine the necessary value of the
spring constant k and the resulting reactions at B.
20°
330
mm
230
mm
450
mm
B
180
mm
300
mm
Problem 5.20

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