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. $
