The discussion revolves around a collision problem involving two hockey pucks that collide at a 90-degree angle and stick together. The original poster presents initial conditions, including masses and velocities of the pucks, and seeks to determine their speed and direction after the collision.
The discussion is ongoing, with participants providing feedback on the original poster's attempts and encouraging further questions. There is an acknowledgment of the complexity of the problem, particularly regarding the two-dimensional nature of the collision.
Participants note that the original poster's solution may have misapplied concepts related to vector velocities and scalar speeds. The problem is framed within the constraints of a homework assignment, which may limit the information available for a complete analysis.
My solution was wrong, Id like to know how to get the right answerkuruman said:Hi Jeemeli and welcome to PF.
Is there something you wish to know about this? If so, please ask.
You've gone from a correct formula involving vector velocities and applied it to scalar speeds.Jeemeli said:m1v1+m2v2=v(m1+m2)
=0.71kg*1.6m/s+0.52kg*3.8m/s=(0.71kg+0.52kg)*v
In short, this is a two-dimensional collision.Jeemeli said:My solution was wrong, Id like to know how to get the right answer