Applied Mechanics and Graphic Statics
A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is

1.00 m/sec²
0.5 m/sec²
1.25 m/sec²
0.75 m/sec²

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Applied Mechanics and Graphic Statics
Free body diagram is an

None of these
Isolated joint with internal forces acting on it
Isolated joint with only body forces acting on it
Isolated joint with all the forces, internal as well as external, acting on it

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