[填空题]
A person exerts a force of 55 2eww+ m;aea5 cN on the end of a door 74 cm wide. Whatozj:u6)h/* a8r1 j5*khrqrcezv2*pgbh z ,zs is the magnitude of*zrjz / r: gj vh c6ah5q*2oh8)pzk* b,1zrseu 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
