Question

Choose the correct statements 

(1) Frictional force depends on nature of two surfaces in contact with each other 

(2) Frictional force depends on normal force with the surfaces are being pressed together.

(3) The force of friction does not depend upon the area of the surfaces in contact 

(4) The force of friction depends on the area of the surfaces in contact

Answer 1

Correct option is (1) Frictional force depends on nature of two surfaces in contact with each other 

(2) Frictional force depends on normal force with the surfaces are being pressed together.

(3) The force of friction does not depend upon the area of the surfaces in contact