The centripetal acceleration is given by the formula
[tex]a_c=\frac{v^2}{r}[/tex]Here, r is the radius and is equal to 291 m
For finding the value of centripetal acceleration, first we need to find velcity v,
The formula for velocity is
[tex]v=\frac{dis\tan ce\text{ }}{\text{time}}[/tex]Substituting the values,
[tex]v=\frac{915}{15}[/tex]So the velocity is 61 m/s.
Now, the value of velocity will be substituted in the centripetal acceleration formula
[tex]a_c=\frac{(61)^2}{291}[/tex]Hence the value of centripetal acceleration is 12.78 meter per second squared.