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Un article trouvé pour ce sujet.
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A falling block |
2008-10-18 |
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KOBINA pose la question :
A 50 kg block being held at rest 20m above the ground is released. the block falls (no friction). how fast is the block traveling (in m/sec) when it has lost 40% of its original potential energy.
Stephen La Rocque lui répond. |
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