[填空题]
A person exerts a force of 55 N on the end of a door 74 cm wi *wmw+o mo46xn;gn2 zide. What is thud,o wnh -*hse .n*zy1e magnitude of the torque if the fyn ,-hw.n1e s*hou*zdorce 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
