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A force F=-4x+8 (in N) is acting on a bl...

A force F=-4x+8 (in N) is acting on a block where x is the position of the block in metres. The energy of oscillation is 32 J. The block oscillates between two points, out of which the value of position of one point (in metres) is an integer from 0 to 9. Find it.

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