Exam-style question
Try this first
Which of the following correctly describes the conversion between angular acceleration and linear acceleration?.
- A.α = a / r
- B.a = α * r
- C.a = r / α
- D.α = r * a
Model answer
What a good answer should say
- a = α * r
Explanation
Why this works
The formula a = α * r relates linear acceleration (a) to angular acceleration (α) and radius (r). This shows that linear acceleration is proportional to both the angular acceleration and the radius of the circular path.
Common mistake
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