Two shuffleboard disks of equal mass, one orange and the other green, are involv

Question

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 = 6.90 m/s as in Figure (a) shown below. After the collision, the orange disk moves in a direction that makes an angle of = 40.0° with the horizontal axis while the green disk makes an angle of = 50.0° with this axis as in figure (b). Determine the speed of each disk after the collision. vof = m/s vgf = m/s

Explanation / Answer

The sum of their vertical momenta is zero:

1) Vo*sin40

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