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A 52.0-kg skater is traveling due east at a speed of 1.10 m/s. A 67.0-kg skater...

A 52.0-kg skater is traveling due east at a speed of 1.10 m/s. A 67.0-kg skater is moving due south at a speed of 8.90 m/s. They collide and hold on to each other after the collision, managing to move off at an angle south of east, with a speed of vf. Find (a) the angle and (b) the speed vf, assuming that friction can be ignored.

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