A block of mass m is attached with a massless spring of force constant k. The block is placed over a rough inclined surface for which the coefficient of frictionis mu=3/4. The minimum value of M required to move the block up the plane is (Neglect mass of pulley string and friction in pulley)

A block of mass m is attached with a massless spring of force constant

1.	A block of mass m is attached with a massless spring of force constant k. The block is placed over a rough inclined surface for which the coefficient of frictionis mu=3/4. The minimum value of M required to move the block up the plane is (Neglect mass of pulley string and friction in pulley)
Answer» 3/5m 4/5 m 6/5 m Answer :A