#
Suppose we are told that the acceleration ‘a’ of a particle moving

with uniform speed ‘v’ in a circle of radius ‘r’ is proportional to some power

of r, say rn, and some power of vm. How can we determine the value of n and m.

## Answers

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Here is your answer

given that, the acceleration a of a particle moving with uniform speed v in a circle of radius r is proportional to some power of r and some power of v. Mathematically, it can be written as :

or

...........(1)

Dimensional formula of a =

Dimensional formula of r =

Dimensional formula of v =

Using dimensional analysis in equation (1) as :

Equation both sides of equation as :

n + m = 1, m = 2

This gives, n = -1

Use the value of m and n in equation (1) in order to get the formula :

Hence, this is the required solution

Thank you

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