Question

a spring of spring constant k placed horizontally on a rough horizontal surface is compressed against a block of mass m placed on the surface so as to store maximum energy in the spring.If the coefficient of friction between the block and the surface is μ the potential energy stored in the spring is

Answer 1

\[a.μ^{2}m ^{2}g ^{2}\div k
b.2μm ^{2}g ^{2}\div k
c.μ^{2}m ^{2}g ^{2}\div 2k\]