Velocities of balls after 2D collision

In summary, a 2D collision is a type of collision that occurs in a two-dimensional space, where two objects collide and exchange energy and momentum. The velocity of a ball after a 2D collision is calculated using the principles of conservation of momentum and conservation of energy, depending on the type of collision and initial velocities of the objects. An elastic collision is one where the total kinetic energy is conserved, while an inelastic collision involves a loss of energy. The velocities of balls after a 2D collision can be affected by factors such as mass, initial velocity, type of collision, friction, and external forces.
  • #1
UrbanXrisis
1,196
1
If a ball at 5m/s struck two stationary balls and it is repelled back at -3m/s at an angle of 15 degrees, what would be the velocity of ball #2 if ball #1 traveled at 1m/s and 10 degrees from the normal?
 
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  • #2
Need more information. Masses of the balls?

cookiemonster
 
  • #3
The masses of the balls are constant at 2kg
 
  • #4
Use conservation of momentum for C.M
 
  • #5
but how do I take the angles into account?
 
  • #6
components

UrbanXrisis said:
but how do I take the angles into account?
Treat x and y components of momentum separately. (Call the original direction the x-axis.)
 

What is a 2D collision?

A 2D collision is a type of collision that occurs in a two-dimensional space, where two objects collide and exchange energy and momentum.

How is the velocity of a ball after a 2D collision calculated?

The velocity of a ball after a 2D collision is calculated using the principles of conservation of momentum and conservation of energy. The equations used depend on the type of collision (elastic or inelastic) and the initial velocities of the objects involved.

What is an elastic collision?

An elastic collision is a type of collision where the total kinetic energy of the system is conserved. In other words, the objects collide and bounce off each other without any loss of energy.

What is an inelastic collision?

An inelastic collision is a type of collision where some of the kinetic energy is lost during the collision. The objects involved may stick together or deform upon impact, resulting in a decrease in total kinetic energy.

What factors can affect the velocities of balls after a 2D collision?

The velocities of balls after a 2D collision can be affected by the masses, initial velocities, and types of collisions (elastic or inelastic) of the objects involved. Other factors such as friction and external forces may also play a role in the final velocities.

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