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Physics › Mechanics

Work, energy and conservation of mechanical energyHigh frequency

10-question practice

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Question 1 of 7
A vertical light spring with spring constant 200 N/m200\ \mathrm{N/m} is compressed by 0.1 m0.1\ \mathrm{m} and locked; a 0.05 kg0.05\ \mathrm{kg} ball rests on its top. When released, the ball is launched vertically. Given the elastic potential energy Ep=12kx2E_p=\tfrac12kx^2, ignoring air resistance and taking g=10 m/s2g=10\ \mathrm{m/s^2}, the maximum height of the ball above its release position is ( ).
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