[填空题]
A person exerts a forcekle0 t89dxxo2eq0we pxp1q,2 of kzrz ia3 a20)big1dt exy k+v(k3cgb,.2yv6m55 N on the end of a door 74 cm wide. What is the magnitude of the torquei+(dvk2vx0a62ec g b3m.1kbz,gkt3 ir )yay z 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
