I understand this is a homework problem. I don\'t expect anyone to do my homewor
ID: 1259257 • Letter: I
Question
I understand this is a homework problem. I don't expect anyone to do my homework for me, but help me understand what I am doing wrong.
The problem goes: Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. The green disk is initially at rest and is struck by the orange disk moving initially to the right at oi = 5.30 m/s as in Figure (a) shown below. After the collision, the orange disk moves in a direction that makes an angle of ? = 35.0
Explanation / Answer
This question is borderline, and could benefit from be re-focused a little. See the section in the FAQ and How do I ask homework questions on Physics Stack Exchange?. The basic 2D elastic collision has a lot to teach in terms of independence of vector components and conservation rules, but you should focus on those and not on this particular instance
First of all, check your arithmetic on the X equation. You should get Vg(x) = +1.74 m/s.
Second, in the Y equation you should use the final orange speed 4.34 instead of 5.3 on the right hand side. You should get Vg(y) = -2.48 or so.