摩擦力与受力图

GeoGebra 命令及参数

1. If(t > tstatic, 1, 0) → testmove
2. Polygon(A, B, C, D) → poly1, a, b, c, d
3. Polygon(E, F, G, H) → poly2, e, f, g, h
4. Polygon(H, G, C, D) → poly3, h_1, g_1, c_1, d_1
5. Polygon(G, F, B, C) → poly4, g_2, f_1, b_1, c_2
6. Segment(E, A) → i
7. Point(yAxis) → I
8. Point(yAxis) → J
9. Midpoint(G, B) → T
10. Segment(T, U) → q
11. Polygon(C_1, D_1, E_1, F_1) → poly7, c_3, d_2, e_1, f_2
12. Textfield(Weight) → InputBox1
13. Textfield(SurfaceArea) → InputBox2
14. If(Initial > 0, Ffkinetic, If[Ffstaticmax > Fappx, Fappx, Ffstaticmax]) → Ff
15. Vector(Q, Z) → u
16. Vector(Q, H_1) → w
17. Vector(Q, G_1) → j
18. Vector(Q, W) → k
19. Vector(Q, R) → l
20. Vector(R, W) → m
21. Midpoint(Q, W) → M_1
22. Midpoint(W, R) → N_1
23. Midpoint(R, Q) → O_1
24. Midpoint(Q, G_1) → I_1
25. Midpoint(Q, Z) → J_1
26. Midpoint(Q, H_1) → K_1
27. If(Fapp > Weight, asin(Weight / Fapp), (0.25 * π)) → anglemax
28. Angle(R, Q, W) → α
29. Angle(W, Q, R) → β
30. Textfield(Fapp) → InputBox3
31. Textfield(CoeffS) → InputBox4
32. Textfield(CoeffK) → InputBox5
33. Textfield(angle) → InputBox6
34. If(Initial > 0, CoeffK, CoeffS) → Coeff