Kathyrod Kathyrod
  • 07-12-2016
  • Physics
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a 700 kg racecar slowed from 30 m/s to 15 m/s. What is the change in momentum

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AL2006
AL2006 AL2006
  • 07-12-2016

Momentum = (mass) x (speed)

Original momentum  =  (700 kg) x (30 m/s)  =  21,000 kg-m/s

Final momentum = (700 kg) x (15 m/s)  =  10,500 kg-m/s

Change in momentum  =  - 10,500 kg-m/s .
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