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25 September, 17:10

10. A 5.0 g pellet is placed in the barrel of a toy gun and is propelled by a spring of force

constant 50. N/m. The spring is compressed 20. cm and then released. Calculate the

maximum velocity of the pellet when shot horizontally.

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Answers (1)
  1. 25 September, 20:16
    0
    v = 20m/s

    Explanation:

    m = 5g = 0.005kg

    k = 50 N/m

    e = 20cm = 0.20 m

    Ek = Eep

    1/2 mv² = 1/2 ke²

    mv² = ke²

    v² = ke²/m

    v = √ (ke²/m)

    v = √400

    v = 20m/s
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