[填空题]
A person exerts a force 1l;e8;ths8s6ipzr.-b af wm0 zc usv*of 55 N on the end of a door 74 cm wide. What is the )o rtjz:ji 03ll;unc /magnitude of the r3t / n0jjzc:uoil);ltorque if the 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
