A 0.5-kg blob of silly putty moving at 2.0 m/s slams into a 4.0-kg blob of silly putty at rest. After sticking together the speed of the two blobs is about
A. 2.5 m/s.
B. 1.5 m/s.
C. 1.1 m/s.
D. none of the above
Answer: D
Environmental & Atmospheric Sciences
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