Physics

11th

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Moment of a Force

66

15 questions

  • 1. Multiple Choice
    15 minutes
    1 pt
    If the moment required to loosen a nut on the wheel of a car has a magnitude of 60.0 Nm, what minimum perpendicular force must be exerted by a mechanic at the end of a 45.0 cm wrench to loosen the nut?
    .666 Nm
     133.3 N
    66.7 N
    13.3 Nm
  • 2. Multiple Choice
    15 minutes
    1 pt
    Find the magnitude of the moment produced by a 5.0 N force applied to a door, at a perpendicular distance of 65 cm from the hinge.
    75 Nm
    3.25 Nm
    6.3 Nm
    8.75 Nm
  • 3. Multiple Choice
    15 minutes
    1 pt
    Image
    What is the distance of the 14 kg mass on the right from the pivot, if it balances with the two masses on the left? (3 kg mass is 65 cm from pivot, 10 kg mass is 35 cm from pivot).
    0.65 m
    0.56 m
    0.79 m
    0.39 m
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