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24 November, 22:41

a catapult is used to project a stone of mass 50g. if the rubber of the catapult has an elastic constant of 200N/m and was stretched 5cm, what speed can it give to the mass

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Answers (2)
  1. 24 November, 23:58
    0
    3.16 m/s

    Explanation:

    Elastic energy in the rubber = kinetic energy of the stone

    EE = KE

    ½ kx² = ½ mv²

    v = √ (kx²/m)

    Given k = 200 N/m, x = 0.05 m, and m = 0.050 kg:

    v = √ (200 N/m (0.05 m) ² / 0.050 kg)

    v = √10 m/s

    v ≈ 3.16 m/s

    Round as needed.
  2. 25 November, 02:22
    0
    3.16 m/s

    Explanation:

    A catapult is used to project a stone of mass 50g. If the rubber of the catapult has an elastic constant of 200N/m and was stretched 5cm, the speed that it can give to the mass is 3.16 m/s.

    v = √ (200 N/m (0.05 m) ² / 0.050 kg)
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