Engineering, 29.01.2021 16:10 jamayeah02
A catapult has two rubber bands, each with a square cross-section with a width 4 mm and length 300 mm. In use its arms are stretched to three times their original length before release. Assume the the modulus of rubber is 10-3 GPa and that it does not change when the rubber is stretched. How much energy is stored in the catapult just before release?
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A catapult has two rubber bands, each with a square cross-section with a width 4 mm and length 300 m...
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