A car moves at 20 m/s round a bend of radius 50 m. Its centripetal acceleration is:

  1. 1000 m/s^2
  2. 8 m/s^2
  3. 2.5 m/s^2
  4. 0.4 m/s^2
Answer

B) 8 m/s^2

a = v^2/r = 400/50 = 8 m/s^2. SLO P-11-B-08 · Understanding

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