A block of mass m is connected to anothe...

A block of mass `m` is connected to another block of mass `M` by a massless spring of spring constant `k`. the blocks are kept of a smooth horizontal plane and are at rest. The spring is unstretched when a constant force `F` starts acting on the block of mass `M` of pull it. Find the maximum extension of the spring

Tension in the string is (m2m3/m2+m3)

Acceleration of m zero

Acceleration of 3m is (m3/m1+m2+m3)

Acceleration of 2m is `(3g)/5`

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