Question

Which expression can be used to calculate centripetal acceleration?

Answer 1

The answer is B.

- Hope this helps

Answer 2

B)
`a_c = (4\pi^2 R)/(T^2)`

Step-by-step explanation:

As we know that for uniform circular motion the speed of the object is given by

`v = (distance)/(time)`

here we know that

`v = (2\pi R)/(T)`

now we know the formula of centripetal acceleration as

`a_c = (v^2)/(R)`

here we know that

`a_c = (((2\pi R)/(T))^2)/(R)`

by solving above we have

`a_c = (4\pi^2 R)/(T^2)`