A block of mass is attached to one end of a massless spring of spring constant

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A block of mass

m

is attached to one end of a massless spring of spring constant

k

. The other end of the spring is fixed to a wall. The block moves on a horizontal rough surface with coefficient of friction

\mu

. The maximum extension of the spring is half its maximum compression. The maximum compression is (1)

\frac{2mg\mu}{k}

(2)

\frac{mg\mu}{k}

(3)

\frac{4mg\mu}{k}

(4) None of these