College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

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A 75-kg circus performer jumps from a 5.0-m height onto a trampoline and stretches it downward 0.30 m. Assuming that the trampoline obeys Hooke's law, (a) how far will it stretch if the performer jumps from a height of 8.0 m (b) How far will the trampoline stretch if the performer stands still on it while taking a bow