[填空题]
A person exerts a force of 55 N on the end8+*:pi7v gb 7p/sbb)wkmz 4n0wxykvwecz5c) qgs; fo5(5 edvof a door 74 cm wide. What is the magnitude 5 fd( vgz;o)eccqs55eof 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
