[填空题]
A person exerts a fo97yf4hoe i xd-rce of 55 N on the end of a door 74 cm wide. What is yjkdgephy/d vj8 47.90:dro u the magnitude of the torque if the force i0kd uyjhodr vjg 48/7dey.9:ps 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
