Physics And Measurement Question 119

Question: Given that $ v $ is speed, $ r $ is the radius and $ g $ is the acceleration due to gravity. Which of the following is dimensionless

[CET 1998]

Options:

A) $ v^{2}/rg $

B) $ v^{2}r/g $

C) $ v^{2}g/r $

D) $ v^{2}rg $

Show Answer

Answer:

Correct Answer: A

Solution:

Angle of banking : $ \tan \theta =\frac{v^{2}}{rg} $ . i.e. $ \frac{v^{2}}{rg} $ is dimensionless.



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