[填空题]
The forearm in Fig. 8–4w)u8*j zi.g ch/a rtiwj.1 zasw7f38s 5 accelerates a 3.6-etyb o- gpj61ye+eim r.ag7 hnj*w8 10ee7a.ikg 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
