[填空题]
The forearm in Fig. 8–45 acchd 1fqr ppx ;boz,k-v;/mj i;2elerates/ *29n zewnfher a0*mt a 3.6-kg ball at 7 $m/s^2$ by means of the triceps muscle, as shown. Calculate (a) the torque needed, $m \cdot N$ (b) the force that must be exerted by the triceps muscle. Ignore the mass of the arm. N
Post time 2025-2-18 20:00:22
