wo discs of masses m1 = 2.0 kg and m2 = 8.0 kg are placed on a
horizontal frictionless surface. Disc mi moves at a constant speed of 8.0 m/s in +x direction and disc m2 is initially at rest. The collision of two discs is perfectly elastic and the directions of two velocities presented by the diagram.
a. What is the x- component of the initial momentum of disc mi?
Before Collision
After Collision
b. What is the y- component of the initial momentum of disc m1?
c. What is the x- component of the initial momentum of disc m2?
d. What is the y- component of the initial momentum of disc m2?
e. What is the x- component of the final momentum of disc m1?
f. What is the x-component of the final momentum of disc m2?
g. What is the y-component of the final momentum of disc m2?
h. What is the final vector velocity of m2?
i. What is the y-component of the final momentum of disc mi?
j. What is the final vector velocity of disc mi?