1. If flat car is given an acceleration a = 3 m/s^2 starting from rest, compute tension (in N) in the light inextensible string connected to block A of mass 30 kg. Coefficient of friction between block and flat car is = 0.50.
Neglect mass of pulley and its friction. Take g = 10.
2. Friction = ## \mu N ##
F = ma
ma = mg - T
3. No idea. I couldn't approach the problem. Please tell me how to approach these types.