The acceleration is 4 when:
Correct answer: A. alpha=2, r=2
- A. alpha=2, r=2
- B. alpha=4, r=4
- C. alpha=3, r=0
- D. r=0, alpha=0
Explanation
The acceleration of an object can be determined using the equation a = r × alpha where r is the radius of curvature and alpha is the angular acceleration. In option A, with alpha = 2 and r = 2, we can calculate the acceleration as follows: a = r × alpha a = 2 × 2 a = 4 Therefore, the acceleration is 4 when alpha = 2 and r = 2, which corresponds to option A.
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