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Retraction Note: Design and modeling using finite element analysis for the sitting posture of computer users based on

M Math Mahantesh1, K V S Rajeswara Rao2, A C Prapul Chandra1

  • 1Department of Mechanical Engineering, RV College of Engineering, Bengaluru, Karnataka India.

International Journal on Interactive Design and Manufacturing
|August 14, 2026
PubMed

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Normal and Tangetial Components: Problem Solving01:24

Normal and Tangetial Components: Problem Solving

Consider a man with a mass of 70 kg seated in a chair connected to a pin support through a member BC. If the man maintains an upright position, the task is to determine the horizontal and vertical reactions of the chair on the man when the member makes a 45° angle with the horizontal. At this moment, the man has a speed of 5 m/s, increasing at a rate of 1 m/s².