Multiple Choice
A block of mass m is pushed against a spring of spring constant k. The spring is compressed by a distance d, the block is then released. It is launched by the spring along a horizontal frictionless surface with a final speed v. A second block, this one having mass 4m is pushed against the same spring and released, gaining a final speed 2v. By what distance was the spring compressed in the second case?
A) d
B) 2d
C) 4d
D) 16d
E) 25d
Correct Answer:
Verified
Correct Answer:
Verified
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