Multiple Choice
Two objects, X and Y, are held at rest on a horizontal frictionless surface and a spring is compressed between them. The mass of X is 2/5 times the mass of Y. Immediately after the spring is released, X has a kinectic energy of 50 J and Y has a kinetic erengy of:
A) 20 J
B) 8 J
C) 310 J
D) 125 J
E) 50 J
Correct Answer:

Verified
Correct Answer:
Verified
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