Question

To determine the force a person's triceps muscle can exert, a doctor uses the procedure shown in the figure(Figure 1), where the patient pushes down with the palm of his hand on a force meter. Given that the weight of the lower arm is Mg = 15.5 N , and that the force meter reads F = 90.0 N , what is the force FT exerted vertically upward by the triceps?

Humerus Triceps Axis Radius Ulna FI Force meter 2.78 cm -18.6 cm Mg -17.0 cm F

Answer 1

Answer Given that Weight of cloween arm (4g) = 15,5 Force FJ 90N Sum of the torques to bu zero. I T=0 (F4 X 0,0273) +(15,9x1136–6,0278)) - 90x(0,17+0,186–0,0278]] =0 0,0278 Ft + 2,515 - 29,53850 Ft = 27,023 0,0278 Ft=972,050 force F exerted vertically upword by the triceps is 97260524 CSScanned with CamScanner