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A block of mass 2kg is attached with a s...

A block of mass `2kg` is attached with a spring of spring constant `4000Nm^-1` and the system is kept on smooth horizontal table. The other end of the spring is attached with a wall. Initially spring is stretched by `5cm` from its natural position and the block is at rest. Now suddenly an impulse of `4kg-ms^-1` is given to the block towards the wall.
Approximate distance travelled by the block when it comes to rest for a second time (not including the initial one) will be (Take `sqrt(45)=6.70`)

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