Class 10 > Science

Question

What is the change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to 72 km/h uniformly?
Medium

Solution

Momentum of car at speed 36km/ h=10m/s-mx10 =1500x10 =15000kg m/s Momentum of car at speed 72km/ h=20m/s=mx20 =1500x20 =30000kg m/s Momentum change=30000-15000 =15000kg m/s

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