[填空题]
A person exerts a force of 55 N on the end o i9ezvxtpmf ygzx 81ot1 sl53 90 :w(tpe8mk.vf a door 74 cm wide. What is the l/4.benrzush ebrxha- g d16v:+x (/jmagnitude of the torqbs/axh/ -6 v:hu41njx+(r b g. lezrdeue 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
