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Their combined momentum was 40,000 kg-m/s: 2000kg X 20 m/s= 40000 kg-m/s.
Since momentum must be conserved, they move off at a combined speed of 5 m/s. (If the masses are different, write an equation that states that momentum is conserved: momentum before the collision equal momentum after the collision).
momentum
the total momentum after a collision must be equal the total momentum before the collision.
conservation of momentum
Law of Conservation of Momentum: The total momentum after the collision is equal to the total momentum before the collission.
10,000
Their combined momentum was 40,000 kg-m/s: 2000kg X 20 m/s= 40000 kg-m/s.
Their combined momentum was 40,000 kg-m/s: 2000kg X 20 m/s= 40000 kg-m/s.
Since momentum must be conserved, they move off at a combined speed of 5 m/s. (If the masses are different, write an equation that states that momentum is conserved: momentum before the collision equal momentum after the collision).
10,000 kg-m/s
10,000 kg-m/s
momentum
Their combined momentum will be equal to the first boxcar's original momentum before the collision.
The total momentum before the collision is the same as the total momentum after the collision. This is known as "conservation of momentum".
the total momentum after a collision must be equal the total momentum before the collision.
conservation of momentum