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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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A 700 kg racecar slowed from 30 m/s to 15 m/s. What is the change in momentum

User Arennuit
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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 .
User Elchin
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