Question

how v^2/R came pls explain

Answer 1

Here is your answer

Consider a particle on a circle with velocity v and radius r . ... In mechanical physics, how do you prove that ac(acceleration) = v^2/r? How do I prove that centripetal acceleration is v^2/r without using calculus? ......

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Answer 2

Answer:

$\text{You already have a formula(Ohm's Law), i.e., } I = \frac{V}{R}\\\therefore P=I^2R = I \times I \times R\\\text{Now by replacing both I into } \frac{V}{R}\\\implies \frac{V}{R} \times \frac{V}{R} \times R\\\text{Now R and R gets cancles and we get:}\\\frac{V\times V}{R} = V^2/R$