A 5.0 kg block with a speed of 2.8 m/s collides with a 10 kg block that has a speed of 2.0 m/s in the same direction. After the collision, the 10 kg block is observed to be traveling in the original direction with a speed of 2.5 m/s. What is the velocity of the 5.0 kg block immediately after the collision?
physics - bobpursley, Sunday, October 30, 2011 at 8:52pm
conservation of momentum:
MV+mv=MV' + mv'
solve for v'