Inelastic collision between 2 objects

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SUMMARY

The discussion centers on an inelastic collision between two objects of equal mass, both initially moving with speed v. After the collision, they move together at a speed of v/3. The key to solving the problem lies in applying the conservation of momentum, leading to the equation mv = 2m(v/3)cos(theta), where theta represents the angle between the initial directions of the objects. A systematic approach to writing out the conservation equation is emphasized to avoid mistakes.

PREREQUISITES
  • Understanding of inelastic collisions
  • Knowledge of conservation of momentum
  • Familiarity with trigonometric functions in physics
  • Basic algebra for solving equations
NEXT STEPS
  • Study the principles of inelastic collisions in detail
  • Learn how to apply conservation of momentum in two dimensions
  • Explore trigonometric identities relevant to physics problems
  • Practice solving collision problems with varying mass and velocity scenarios
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Students studying physics, particularly those focusing on mechanics and collision theory, as well as educators seeking to reinforce concepts of momentum and energy conservation.

wing_88
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Homework Statement


2 objects of equal mass collide inelastically having initial speed v.
after that they move off together with speed v/3.
what is the angel between the initial directions?



Homework Equations





The Attempt at a Solution


mv = 2m v/3 cos ...
 
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Try doing it for just one of the objects:

mv = m(v/3)cos(theta)
 
Hi wing_88! :smile:
wing_88 said:
mv = 2m v/3 cos ...

hmm :redface:

start again, and be systematic …

first, say in words what your conservation equation is …

then write it out, and you won't make mistakes. :wink:
 

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