[填空题]
The forearm in Fig. 8–45 acceleracld65df /9e ,(sb hlhvteq n,ngn- q itp;q(ys,k.u -vdis32, mhs 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
