A Blob of Material in Outer Space Moves at 3

question 159

Multiple Choice

A blob of material in outer space moves at 3 m/s when it collides and sticks to a half-as-massive blob initially at rest.Compared with the initial kinetic energy of the 3-m/s blob,the kinetic energy of the coupled blobs is

• A)one-third.
• B)two-thirds.
• C)three-quarters.
• D)not enough information

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