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A torque of 12 N-m is applied to a door, and does 7.6 J of work...

  1. A torque of 12 N-m is applied to a door, and does 7.6 J of work on the door as it opens. Through what angular displacement does the door move through?
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Answer #1

Work-done is given by:

W =

= torque = 12 N-m

W = Work-done = 7.6 J

= Angular displacement = ?

from above equation

= W/

= 7.6/12

= 0.633 rad = Angular displacement

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