Physics, 07.11.2019 20:31 melissacornut
An automobile of mass 2000 kg is driven into a brick wall in a safety test. the bumper behaves like a hooke’s-law spring. it has an effective spring constant of 4 × 106 n/m, and is observed to compress a distance of 1.39 cm as the car is brought to rest. what was the initial speed of the automobile? answer in units of m/s.
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An automobile of mass 2000 kg is driven into a brick wall in a safety test. the bumper behaves like...
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