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In Fig 3E.17, the mass m(2) rests on a r...

In Fig 3E.17, the mass `m_(2)` rests on a rough table. The mass `m_(1)` is pushed against the spring to which it is not attached Force constant of the spring is k, coefficient of friction is `mu_(k)`.
(a) Find the speed of the blocks after the spring is released and `m_(2)` has fallen a distance of `h`.
(b) If the spring is attached to the block and it falls a distance `h` before coming to rest, calculate the coefficient of friction `mu_(k)`.

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