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Change in momentum when a car weighing 700kg changes its speed from 100m/s to 200 m/s is:
  • a)
    14000 kg.m/s
  • b)
    10500000 kg.m/s
  • c)
    21000000 kg.m/s
  • d)
    70000 kg.m/s
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Change in momentum when a car weighing 700kg changes its speed from 10...
Change in momentum = mv - mu
When m = 7000kg, v= 200m/s, u = 100 m/s
Now, 700 * 200 - 700 x 100 = 140000 - 70000 = 70000 kg. m/s
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Community Answer
Change in momentum when a car weighing 700kg changes its speed from 10...
Change in momentum =mv-mu
where m=700kg
v=200m/s
u=100m/s
now, 700*200-700*100
=140000-70000
=70000kg.m/s
Hope u understand
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