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3 years ago

7

A box, compressing a spring by 4 m, is loaded and ready. Moments later the 8.0 kg box has been launched with

1 answer:

Mrac [35]3 years ago

3 0

Answer:

50 N/m

Explanation:

Elastic energy = kinetic energy

EE = KE

½ kx² = ½ mv²

½ k (4 m)² = ½ (8.0 kg) (10.0 m/s)²

k = 50 N/m

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