A

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Q. A car moves with a speed of 20 m/s and comes to rest in 5 s. The retardation is:

  • (A) 2 m/s²
  • (B) 4 m/s²
  • (C) 5 m/s²
  • (D) 10 m/s²
  • Correct Answer - Option(B)
  • Views: 1
  • Filed under category Physics
  • Hashtags: NEET
Explanation by: Admin
Acceleration a = (v - u)/t = (0 - 20)/5 = -4 m/s². Retardation is 4 m/s².

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