[填空题]
A person exerts a force of 55 N on the end of a doo 3 mbv0/rdohe/ ls.e,xl mp05zr 74 cm wide. What 49tm r0-w0 qzja f4muiis the magnitude of the tm -4w0i9j0tuf r4 zqamorque 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
