Conservation of momentum in an inelastic collision

Click For Summary
SUMMARY

The discussion focuses on the conservation of momentum in an inelastic collision involving two identical masses moving in the xy-plane. Both masses, denoted as m, collide at the origin with momenta at an angle φ and speed v. Post-collision, they stick together and move at an angle −θ2 with respect to the +x axis at a speed of v/2. The key equations utilized include p=mv and pi=pf, emphasizing the principle that momentum is conserved in the absence of external forces.

PREREQUISITES
  • Understanding of vector components in physics
  • Familiarity with the principles of momentum conservation
  • Basic knowledge of inelastic collisions
  • Ability to solve equations involving momentum
NEXT STEPS
  • Study the derivation of momentum conservation equations in two dimensions
  • Learn about inelastic collision scenarios and their implications
  • Explore vector decomposition techniques for analyzing collisions
  • Investigate real-world applications of momentum conservation in physics
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and collision theory, as well as educators seeking to explain the principles of momentum conservation in practical scenarios.

Runaway
Messages
48
Reaction score
0

Homework Statement



Two identical sticky masses m are moving in
the xy-plane, with their momenta at an angle
of φ with one another. They are each moving
at the same speed v when they collide at the
origin of the coordinates and stick together.
After the collision, the masses move at an
angle −θ2 with respect to the +x axis at
speed v/2

a. pi/3
b. zero
c. 140°
d. 2pi/3
e. 110°
f. 45°

fuz6t1.jpg


Homework Equations


p=mv
pi=pf

The Attempt at a Solution


I have no idea where to start
 
Physics news on Phys.org
There are no external forces, so you know that momentum is conserved. Start by writing the conservation of momentum equations for both the x and y directions, breaking vectors into components if necessary.
 

Similar threads

Replies
9
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
Replies
10
Views
3K
  • · Replies 22 ·
Replies
22
Views
4K
  • · Replies 13 ·
Replies
13
Views
1K
Replies
21
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 7 ·
Replies
7
Views
4K
  • · Replies 10 ·
Replies
10
Views
2K