[填空题]
A person exerts a force of 55 N on the end of a door 74 vdd/b2v2ex1 wc(lj :( l9wn)defa eijk+/6yk qm wide. What is the magnitude of the torque if the force is exerywj6 e iq f/l)dkkne(l+:j (a9ted (a) perpendicular to the door $m \cdot N$ (b) at a 45 $^{\circ} $ angle to the face of the door? $m \cdot N$
Post time 2025-2-18 20:00:22
