• A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.490 m/s. The total mass of the sled, man, and rock is 95.0 kg. The mass of the rock is 0.300 kg and the man can throw it with a speed of 16.0 m/s. Both speeds are relative to the ground.
• a. Determine the speed of the sled (in m/s) if the man throws the rock forward (i.e., in the direction the sled is moving).
• b. Determine the speed of the sled (in m/s) if the man throws the rock directly backward.

Answer rating: 100% (QA)

A From conservation of momentum m Mv mv Mv 9353 31155 935 31v v 0477 ms B Since al... View the full answer