A block is sliding on a horizontal surface. If the contact force on the block is root2 times the frictional force, the coefficient of friction is
pranaykamal:
are you sure about the term "contact force" ? because contact force implies it is the resultant of both normal and frictional forces
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If the contact force is only normal force, then
coefficient of friction(μ) = 1/√2
If the contact force is both friction and normal, then
μ = 1
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