PHYSICS PROBLEM? Need urgent help!

Posted on 2017-05-03 18:27:00 in Physics by LUEK

A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.460 m/s. The total mass of the sled, man, and rock is 93.0 kg. The mass of the rock is 0.260 kg and the man can throw it with a speed of 15.0 m/s. Both speeds are relative to the ground. Determine the speed of the sled if the man throws the rock forward (i.e. in the direction the sled is moving).

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