[填空题]
A person exerts a fo( 9 wsi+ol,fhurce of 55 N on the end ofz;6vev* r9 rz9p8yg l-zfd7dw a door 74 cm wide. What is the magnitude of the torque if tr yr 6l*wz dg;fv 9de-v79pz8zhe force is exerted (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
