Exam-style question
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What is the effect of applying a torque in the opposite direction of an existing angular motion?.
- A.It increases the angular speed.
- B.It decreases the angular speed.
- C.It has no effect on the angular speed.
- D.It reverses the direction of angular motion.
Model answer
What a good answer should say
- It decreases the angular speed.
Explanation
Why this works
Applying a torque in the opposite direction of the angular motion will act to slow down the rotation, thus decreasing the angular speed of the object.
Common mistake
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