[填空题]
A person exerts a force of 55 N ;,xegmow; 8ee om p 4x+wv,, yz5k+xj i2j8znu.zpk -lwn the end of a door 74 cm wide. What is the magnitude of the torque if the fozz+,p m-wxk wlui xv.y,8n j2+j5pk z4rce 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
