## College Physics (4th Edition)

The force exerted by the triceps muscle is $1460~N$
The torque exerted by the triceps muscle about the rotation axis is equal in magnitude to the torque exerted by the palm about the rotation axis. We can find the force exerted by the triceps muscle: $r_t~F_t = r_p~F_p$ $F_t = \frac{r_p~F_p}{r_t}$ $F_t = \frac{(0.38~m)(96~N)}{0.025~m}$ $F_t = 1460~N$ The force exerted by the triceps muscle is $1460~N$.