A block is sliding on a rough horizontal surface. If the contact force on the block is `sqrt2` times the frictional force, the coefficient of friction isA. `0.25`B. `1/sqrt2`C. `sqrt2`D. 1

A block is sliding on a rough horizontal surface. If the contact force

1.	A block is sliding on a rough horizontal surface. If the contact force on the block is `sqrt2` times the frictional force, the coefficient of friction isA. `0.25`B. `1/sqrt2`C. `sqrt2`D. 1
Answer» Correct Answer - D<br>`R=sqrt(N^(2)+f^(2)),N=mg`