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Calculate the spring constant of a spring given a force and extension, and set up the equation for a second scenario involving mass.

Physics

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Step-by-step solution

2 steps
  1. Calculate the spring constant (kk).

    According to Hooke's Law, the force applied to a spring is directly proportional to its extension (F=kxF = kx).
    Given:
    Force F1=4 NF_1 = 4 \text{ N}
    Extension x1=0.5 mx_1 = 0.5 \text{ m}

    k=F1x1k = \frac{F_1}{x_1} k=4 N0.5 mk = \frac{4 \text{ N}}{0.5 \text{ m}} k=8 N/mk = 8 \text{ N/m}
  2. Set up the equation for the second scenario.

    When the spring hangs vertically supporting a mass, the force acting on the spring is the weight of the mass (F2=mgF_2 = mg).

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