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Two hockey players, "Wordie" and "Gayne" had a 'head-on' collision. Wordie ($\text{mass} = 86\text{ kg}$) was moving toward the south side (the positive direction) of the rink at $9.6\text{ m/s}$ just before the collision.

Gayne was moving toward the north side of the rink at $8.4\text{ m/s}$ just before the collision. They became entangled and together moved at $1.3\text{ m/s}$ toward the south side of the rink immediately after the collision. The horizontal forces between their skates and the ice were negligible during the collision.

What was Gayne's mass?

A

$74\text{ kg}$

B

$100\text{ kg}$

C

$110\text{ kg}$

D

$130\text{ kg}$

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