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Homework Help: Torque and netwon's second law: True or false question

  1. Dec 2, 2008 #1
    1. The problem statement, all variables and given/known data
    True or false: "Torque cannot exist without a force acting on the body"

    2. Relevant equations
    t = force(rsin(theta))

    3. The attempt at a solution
    I can't find a reason to believe the statement is false. Look at the equation:
    t = Frsin@, where the @ sin is theta, and F is force.

    if F is 0, then t must equal zero, so I think the original statement, "Torque cannot exist without a force acting on the body" is true.
  2. jcsd
  3. Dec 2, 2008 #2


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    Staff Emeritus
    Science Advisor
    Homework Helper

    Sounds right to me.
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