Physics And Measurement Question 247

Question: Suppose the kinetic energy of a body oscillating with amplitude A and at a distance x is given by $ K=\frac{Bx}{x^{2}+A^{2}} $ The dimensions of B are the same as that of

Options:

A) work/time

B) work x distance

C) work/distance

D) work x time

Show Answer

Answer:

Correct Answer: B

Solution:

[b] From K $ =\frac{Bx}{x^{2}+A^{2}}=\frac{Bx}{x^{2}}=\frac{B}{x} $
$ \therefore B=K\times x=K.E.\times dis\tan ce $

$ =work\times dis\tan ce. $



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