Question

Two masses f- 100 kg and ma-40kg is beked togrther with a steel bar. Mas M is pland on an mrline at aa angle θ = 7V to the horizontal as shown. The steel bar bs supported ly two frictionless pins around which the bar can Ereely rotate. The static frition coefficients are μι,-04 and 0.3. (a) (2 marks) Draw a free body diagram that shows all forees acting on this sys b)4 marks) Caleulate the minimum mas mg of a block which must be put 얘the top of block m, to krep the sys- tem in static equlibriu Total Marks: 80 15

Answer 1