# physics please help

posted by
**blah physics**
.

One lump of clay traveling at 14.98 m/s overtakes a second lump traveling at 4.98 m/s. After collision they are stuck together. To the nearest tenth of a m/s what is their common velocity?

--------------------------------------------------------------------------------

4

If the second lump in the above problem was moving to the left before the collision what would be the answer?

--------------------------------------------------------------------------------

5

A ball strikes a second ball at rest in an elastic collision. If the mass of the first ball is 27 kg and the mass of the second is 1.7 kg, to the nearest tenth of a m/s, if the first ball is initially traveling at 11.7 m/s, what is its velocity after the collision?

--------------------------------------------------------------------------------

6

In the preceeding problem what is the velocity of the second ball after collision?