Question 111446
If the centrifugal acceleration ({{{A[c]}}})varies inversely as the radius (r), you can write:
{{{A[c] = k/r}}} where k = the constant of proportionality.
We can find the value of k by substituting the given values of {{{A[c] = 9}}} and {{{r = 60}}}
{{{9 = k/60}}} Multiply both sides by 60.
{{{k = 540}}}
Now the equation looks like this:
{{{A[c] = 540/r}}} and if you substitute r = 180 for the turn radius, you get:
{{{A[c] = 540/180}}}
{{{A[c] = 3}}}