Find the magnitude of the centripetal acceleration of a particle on the tip of a fan blade of length 0.30 metre, rotating at 1200 rev/minute
Correct answer: B. 4737.6m/s2
- A. 40m/s2
- B. 4737.6m/s2
- C. 245m/s2
- D. 20m/s2
Explanation
Solution:a = rω²a = (0.30) (1200 × 2π / 60)² = 4737.6 ms⁻²
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About Acceleration
Acceleration measures the rate at which velocity changes with time, including changes in speed, direction or both. Work includes average and instantaneous acceleration, the relation a = Δv/Δt, uniform acceleration equations, and interpreting velocity time and displacement time graphs, with acceleration carefully distinguished from velocity.
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