Posted by **Christina** on Monday, December 10, 2012 at 8:59pm.

Here's the question:

A 55 kg swimmer is standing on a stationary 235 kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.3 m/s relative to the shore. Find the recoil velocity that the raft would have if there were no friction and resistance due to the water.

I THINK I'm supposed to use this equation: 0=(mAvA)+(mBvB)

But I'm not really sure.

Also I think the answer is supposed to include a direction?

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