A 50-Kg Blob of Clay Moving at 2

A 5.0-kg blob of clay moving at 2.0 m/s slams into a 4.0-kg blob of clay at rest. The speed of the two blobs stuck together after colliding is about

A) 1) 1 m/s.
B) 1) 5 m/s.
C) 2) 5 m/s.
D) none of the above