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  1. F

    B Hooke's Law and Restoring/Applied Force

    According to Hooke's Law, F=-kx where F is the restoring force, k is the spring constant and x is the length of extension/compression. When an applied force compresses a spring, a restoring force will act in the opposite direction. When a spring is compressed and is in equilibrium (not...
  2. F

    B The change in magnitude of centripetal acceleration

    When an object (e.g. racecar) moves around in circles with constant tangential velocity, constant centripetal acceleration is present. What happens to the centripetal acceleration when the racecar is at rest, then increases its speed? I know that the tangential velocity increases due to the...