[填空题]
A person exerts a force of 55 N on the end of a b/ife-8 k4fr9)twmxp f)1m tldoor 74 e-fc c *j+2utocph5v3cm wide. What is the magnitude of th+up vj ctfo5 ce2h*c3-e 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
