Answers

  • qais
  • Content Quality
2016-04-30T09:45:46+05:30
Here, v=0 km/h
u = 180 km/h = 50 m/s
s = 1 km = 1000 m
applying the equation, v² - u² = 2as
⇒ 0 -(50)² = 2a×1000
⇒a = - (2500)/2000 = - 1.25 m/s²
∴retardation = 1.25 m/s²
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