我们在解Sears大学物理学上一道力学题时,得到了一个不可能的答案,现在提出来供大家讨论.这道题分(a)(b)两问,但问题发生在(b)问上,所以对(a)问便略去不谈了.这道题的原文是: 重为500N的标杆,其一端静止在粗糙的水平面上,静摩擦系数μ_s=0.3.标杆上端被固定在地面上的绳索拉住,绳索与标杆成37°角,如图(一)所示.现有水平力F作用在标杆上,试问 We got an impossible answer to a mechanistic question in the physics of Sears University and are now presented for discussion. The question points (a) (b) are two questions, but the question arises in (b) , So (a) to ask a little to go .This question’s original is: the standard weight of 500N, one end of the stationary at a rough level, the static friction coefficient μ_s = 0.3. The upper end of the pole is fixed to the ground Pull the rope, the rope and the benchmark into a 37 ° angle, as shown in Figure (a) shows the existing horizontal force F on the benchmark, ask