John and Jane are sitting in a sled on a friction-less ice surface when they spot a poisonous spider in the sled between them. John jumps out of the sled at 5.5 m/s at 40° to the right and Jane jumps out of the sled at 7.5 m/s to the left. John's weight is 900 N, Jane's 750 N and the sled's 1100 N. What is the velocity of the spider after the jumping and yelling?
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