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Which of the following statements concerning friction is false? a) Keeping everything else constant, the maxium...

Which of the following statements concerning friction is false?

a) Keeping everything else constant, the maxium frictional force that can act on a block sitting on a table will increase if extra mass is places on top of the block.

b) For most pairs of surfaces, the coefficient of kinetic friction is less than the coefficient of static friction.

c) The size of the frictional force can depend on the applied force.

d) The frictional force is always proprotional to the acceleration of the object.

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Thanks for asking ..a) (fo) = 4 mg (True) if M increases clearly (hol man will increase b) Mk < Mstatic True c ) True friction is self adjustin

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