How to calculate total momentum before and after an equation?

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SUMMARY

The total momentum before and after a collision can be calculated by summing the individual momenta of the colliding objects. In this discussion, the momentum of cart 1 and cart 2 is calculated using the formula p = m*v, where p is momentum, m is mass, and v is velocity. The total momentum before the collision is the sum of the momenta of both carts, and this total should equal the total momentum after the collision, accounting for directionality, as one cart may have negative momentum if moving in the opposite direction.

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  • Understanding of momentum calculation using p = m*v
  • Basic knowledge of vector quantities and directionality in physics
  • Familiarity with collision types (elastic and inelastic)
  • Ability to perform arithmetic operations with negative numbers
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  • Explore examples of momentum calculations in two-dimensional collisions
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Students studying physics, particularly those focusing on mechanics and momentum, as well as educators looking for clear explanations of collision dynamics.

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Homework Statement


I have been working on a lab where I am doing an experiment with two carts. I have calculated the momentum of cart 1 before and after the collision, and the momentum of cart 2 before and after the collision, but then how do I get the total momentum before and after the collision?


Homework Equations


p=m*v


The Attempt at a Solution


Would total momentum be equal to (momentum before collision of cart 1)+(momentum before collision of cart 2)?
 
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seallen said:
Would total momentum be equal to (momentum before collision of cart 1)+(momentum before collision of cart 2)?

Yes it would, it should also equal momentum of the carts after the collision (within error)
 
By the way, don't forget that one of the cart's momentum will be negative if they are moving in opposite directions.
 

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