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A stationary curling stone is struck in a glancing collision by a second curling stone of...

A stationary curling stone is struck in a glancing collision by a second curling stone of equal mass. If the first stone moves away at a velocity of 0.92 m/s [N71° W] and the second stone moves away at a velocity of 1.25 m/s [N44° E], what was the initial velocity of the second stone?

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