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Car A of mass 1500kg traveling …

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Car A of mass 1500kg traveling at 25m/s collides with another Car B of mass 1000kg traveling at 15 m/s in the same direction. After collision, the velocity of car A becomes 20 m/s calculate the velocity of car B after collision

Posted by Maha Cishnu 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Sivam Kumar 7 years, 3 months ago

Let the velocity of carB after collision be x As we know that Total momentum before collision = Total momentum after collision So, 1500×25 +1000×15 = 1500 ×20 + 1000×x 37500 + 15000 = 30000 +1000x 1000x=52500—30000 1000x=22500 x=22.5 Therefore the velocity of carB after collision will be 22.5 mper second

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