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The car A of mass 1500 kg travelling at 25 m/s collides with another car B of mass 1000 kg travelling at 15 m/s in the same direction. After collision the velocity of car A becomes 20 m/s. The velocity of car B after the collision is?
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The car A of mass 1500 kg travelling at 25 m/s collides with another c...
Initial Conditions:
- Car A mass = 1500 kg, velocity = 25 m/s
- Car B mass = 1000 kg, velocity = 15 m/s

Conservation of Momentum:
- Before the collision: (1500 kg)(25 m/s) + (1000 kg)(15 m/s) = Total momentum
- After the collision: (1500 kg)(20 m/s) + (1000 kg)(v) = Total momentum
- Solve for v to find the velocity of Car B after the collision

Calculations:
- (1500 kg)(25 m/s) + (1000 kg)(15 m/s) = (1500 kg)(20 m/s) + (1000 kg)(v)
- 37500 kg·m/s + 15000 kg·m/s = 30000 kg·m/s + 1000 kg·v
- 52500 kg·m/s = 30000 kg·m/s + 1000 kg·v
- 1000 kg·v = 22500 kg·m/s
- v = 22.5 m/s

Result:
- The velocity of Car B after the collision is 22.5 m/s.
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The car A of mass 1500 kg travelling at 25 m/s collides with another car B of mass 1000 kg travelling at 15 m/s in the same direction. After collision the velocity of car A becomes 20 m/s. The velocity of car B after the collision is?
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