Laws of MotionHard
Question
A block is placed on a rough horizontal surface and a horizontal force F is applied to it as shown in figure. The force F is increases from zero in small steps. The graph between applied force and frictional force is f is plotted by taking equal scales on axis. The graph is


Options
A.a straight line of slope 45o
B.a straight line parallel to F-axis
C.a straight line parallel to f-axis
D.a straight line of slope 45o for small F and a straight line parallel to F-axis for large F.
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