Work Energy And Power Question 328

Question: A body of mass m dropped from a certain height strikes a light vertical fixed spring of stiffness k. The height of its fall before touching the spring if the maximum compression of the spring is equal to 3mgk is:

Options:

A) KQR

B) KQ

C) KQR2+2

D) mg4K

Show Answer

Answer:

Correct Answer: A

Solution:

[a] mg(h+3mgK)=12K(3mgK)2



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