Impulse in an inelastic collision

  • Thread starter TurtleYack
  • Start date
  • #1

Homework Statement


2 particles travel towards each other at 10ms-1. Particle 1 has a mass of 10kg and particle 2 has a mass of 30kg. It is an inelastic collision.

Find the magnitude of the Impulse of particle 1 and 2.


Homework Equations


I=Ft=mv-mu
m1u1+m2u2=(m1+m2)V

The Attempt at a Solution


I'm able to calculate the final velocity of the two particles after the collision when they have joined.
((10×10)+(30×10))/(10+30)=10ms-1
but I cannot now calculate the impulse of any of the particles.
For example for particle 1:
mv-mu=(10×10)-(10×10)=0

Could anyone help?
 

Answers and Replies

  • #2
35,513
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10m/s is not the final velocity. Keep in mind that they are colliding, their motion is not in the same direction.

Oh, and please don't forget units.
 

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