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Physics
Identify the correct statement.
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Q. Identify the correct statement.
KEAM
KEAM 2012
Laws of Motion
A
Static friction depends on the area of contact
11%
B
Kinetic friction depends on the area of contact
16%
C
Coefficient of static friction does not depend on the surfaces in contact
21%
D
Coefficient of kinetic friction is less than the coefficient of static friction
48%
E
Coefficient of kinetic friction does not depend on the surfaces in contact
48%
Solution:
Both static and kinetic friction are independent of the area of contact.
Coefficient of static friction depends on the surfaces in contact. $\therefore \quad$ $\mu_{k}$ $<\mu_{s}$