A force F = 20 N is applied to a block (...

A force `F = 20 N` is applied to a block (at rest) as shown in figure. After the block has moved a distance of `8 m` to the right, the direction of horizontal component of the force F is reversed. Find the velocity with which block arrives at its starting point.
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`(16sqrt7)/3 m//s`

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A force `F = 20 N` is applied to a block (at rest) as shown in figure. After the block has moved a distance of `8 m` to the right, the direction of horizontal component of the force F is reversed. Find the velocity with which block arrives at its starting point. .

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A force `F = 20 N` is applied to a block (at rest) as shown in figure. After the block has moved a distance of `8 m` to the right, the direction of horizontal component of the force F is reversed. Find the velocity with which block arrives at its starting point.
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