Understanding Friction: Types and Causes
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Questions and Answers

What is the primary reason for friction between two surfaces?

  • The irregularities on the surface (correct)
  • The weight of the objects
  • The smoothness of the surfaces
  • The shape of the objects

    • Which type of friction occurs when two surfaces are at rest with respect to each other?

  • Kinetic friction
  • Static friction (correct)
  • Rolling friction
  • Sliding friction

    • What is an example of an application of friction in everyday life?

  • Motion of wheels on a road
  • Sailing of a boat
  • Flying of an airplane
  • Writing on a book with a pen (correct)

    • What is the maximum force that can be applied to block B so that both blocks move together?

    <p>135 N</p> Signup and view all the answers

    What is the coefficient of friction used in the calculation of the force of friction between block B and the surface?

    <p>0.3</p> Signup and view all the answers

    What is the acceleration of block B if the maximum force is applied to it?

    <p>6 m/s2</p> Signup and view all the answers

    What is the reason why friction is a non-conservative force?

    <p>Because it depends on the path</p> Signup and view all the answers

    What is the minimum value of friction required for the blocks to move together?

    <p>30 N</p> Signup and view all the answers

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