Homework Help: Physics

Posted by Linda on Sunday, October 16, 2011 at 7:34am.

A 45 kg boy running at 3 meters per second jumps on to a 97 kg sled that is initially at rest. Find the resulting speed of the sled with the boy aboard.

Physics - drwls, Sunday, October 16, 2011 at 9:22am
Hint: linear momentum is conserved.

Mboy*(3 km/s) = (Mboy + Msled)*Vfinal

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