Questions 23 and 24 are based on the following physical situation Ends of three light identical rods each of length / are connected to a light pivot that enables them to rotate in any direction. At the other ends of the rods, three particles A, B and C of masses m, 2m and 3m respectively are affixed. Initially, the rods are coplanar, angle between any two adjacent rod is 120° and the particles are at rest. Now the particle C is given a velocity u perpendicular to the rod connected to it and in the plane of the rods as shown in the figure. Ignore gravitational interaction between the particles. 23. Denoting acceleration vectors of the particles A, B and C by a, a and ac respectively, which of the following conclusion can you make? (a) ā +ā +āc = Ō (c) a + 2a +3āc = 0 24. What are moduli of acceleration vectors of the particles A, B and C immediately after the particle C is given velocity u? (a) All equal to 6u² 3u² 11/ 11/ (c) and (b) 3ā + 2 + c = 0 (d) None of these 2u² 111 (b) (d) 3u² 1 12u² 131 13 3u² 21 6u² and u² 1 and 4u² 131 1 BQ 120° 1 120° 120°

Use blank or isometric grid paper to draw the isometric views of the following objects.

Use the attached graph to answer the follwing questions a. Write an equation that gives the position with respect to time (use specific quantities) b. Write an equation that gives the velocity with respect to time (use specific quantities) c. Draw a velocity over time graph for this motion from t=0 to t=12s.

show all steps in detail, units and formulas please.