[填空题]
A person exerts a force of 55;(s2 xunqk.eb N on tnfbu) 1feu ot1:rc.xu/q0 7do he end of a door 74 cm wide. What is the magnitude of the torquefto1 x)/q.0 d:uucr7bf1n ueo 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
