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Spring forces and Hooke's law

Physics • Applications of Newton's Laws • Knowledge-Based • 4 questions

Spring forces and Hooke's law Knowledge-Based Download PDF

Physics · Forces & Newton's Laws · Physics · Applications of Newton's Laws

4 Physics practice questions on Spring forces and Hooke's law. Questions that assess core concepts and understanding.

Questions

  1. 1.

    A 2.0 kg block is held in static equilibrium on a frictionless incline angled at 30° above the horizontal by an ideal spring oriented parallel to the incline. Taking the acceleration due to gravity to be 9.8 m/s² and the spring constant to be 98 N/m, what is the stretch of the spring?

    • A) 0.050 m
    • B) 0.17 m
    • C) 0.10 m
    • D) 0.20 m
  2. 2.

    A 2.5 kg block rests on a rough horizontal surface with a coefficient of static friction of 0.40 and is attached to an ideal horizontal spring with a spring constant of 49 N/m. Taking the acceleration due to gravity to be 9.8 m/s², what is the maximum distance the spring can be compressed from its equilibrium position before the block begins to slip?

    • A) 0.050 m
    • B) 0.10 m
    • C) 0.15 m
    • D) 0.20 m
  3. 3.

    A 2.0 kg block rests on a frictionless horizontal floor and is connected to a fixed wall by an ideal horizontal spring with a spring constant of 120 N/m. What is the magnitude of the block's acceleration at the instant the spring is stretched by 0.050 m from its equilibrium length?

    • A) 0.83 m/s2
    • B) 1.5 m/s2
    • C) 3.0 m/s2
    • D) 6.0 m/s2
  4. 4.

    A light vertical spring stretches by 0.12 m when a 0.60 kg object hangs from it in static equilibrium. Taking the acceleration due to gravity to be 9.8 m/s2, what is the spring constant of the spring?

    • A) 5.0 N/m
    • B) 49 N/m
    • C) 71 N/m
    • D) 490 N/m