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Unilorin Post-UTME Physics 2024 (Model questions) Question 2

Question 2

Motion

A car of mass 1200kg moves around a circular track of radius 25m at a speed of 10m/s. What is the centripetal force acting on the car?

  1. A.1200N
  2. B.2400N
  3. C.4800N
  4. D.4960N
Show the answer and explanation

Answer: C (4800N)

Explanation

F = mv²/r = 1200 × 10² ÷ 25 = 120000 ÷ 25 = 4800 N.