[填空题]
A person exerts a forcqivuisf kuzd(3z4nn5s 8h* 7n4dn8j1e of 55 N on the giwt(kdu5p awn sl,n,0++0wn0f ur8vend of a door 74 cm wide. What is the magnn,+ vd w0+ lu,a(sn85 wginu0f0wrpktitude of the torque 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
