Observe the given activity. What do you conclude from this? – McqOptions

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1.	Observe the given activity. What do you conclude from this?
A.	The frictional force depends on the nature of the two surfaces in contact.
B.	Frictional force increases as mass increases.
C.	Rolling friction is less than sliding friction.
D.	Frictional force is muscular force.
Answer» C. Rolling friction is less than sliding friction.

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