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anonymous

  • 5 years ago

23. A student uses a compressed spring of force constant 22 N/m to shoot a 7.5 103-kg eraser across a desk. The magnitude of the force of friction on the eraser is 4.2 102 N. How far along the horizontal desk will the eraser slide if the spring is initially compressed 3.5 cm? Use the law of conservation of energy.

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  1. anonymous
    • 5 years ago
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    It should be "A student uses a compressed spring of force constant 22 N/m to shoot a 7.5 X10 power of -3 kg eraser across a desk. The magnitude of the force of friction on the eraser is 4.2 X 10 power of -2 N. " and the rest of the question is same.

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