Consider the collision between two hockey pucks in the figure below. They do not

Question

Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are v1i = 22 m/s and v2i = 10 m/s. It is found that after the collision one of the pucks is moving along x with a speed of 6 m/s. What is the final velocity of the other puck?

webassign.net Practice Another Version 1. GioCP2 7.P.025.ssm. Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are ni = 22 m/s and V2i = 10 m/s. It is found that after the collision one of the pucks is moving along x with a speed of 6 m/s, what is the final velocity of the other puck? magnitude direction m/s counterclockwise from the +x-axis Puck 1 30° Puck 2 Grade This Show Answer Try Again Click Grade This after you answer a question, and then click Show Answer. After answering all question parts, you can click Try Again

Explanation / Answer

  Kinetic energy (ke) = mv^2
ke1 = 484 * m
ke2 = 100 * m
total ke = 584 * m

After the collision, one puck is moving at 6m / s
kef = 36 * m

the second puck must have the rest of the kinetic energy (ignoring friction and other energy losses, that is)
548 * m = mv^2
v = sqrt(548)
v = 23.41 m / s

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