Question

please solve this


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Answer 1

no 1 is False

no 3 is false

Answer 2

A) False, because gravitational force is a non contact force as the bodies needn't be in physical contact with each other

B) False, as friction increases with roughness.

C) False, rolling friction is always less than sliding friction because it is easier to roll a body than to slide a body om same surface

D) True, as friction between feet and ground helps us to walk.

E) False, friction can be reduced by making the surface in contact smoother.

F) True

G) True

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