How Do You Calculate a Boat's Acceleration on a Circular Path?

[joemama69]

Homework Statement

A boat is traveling along a circular path having a radius of 20m. Determine the magnitude of the boat's acceleration when the speed is v=5m/s and the rate of increase in the speed is v'=2 m/s^2

Homework Equations

a=(a(t)^2+a(n)^2)^1/2

The Attempt at a Solution

I believe the a(t)=2 <--- May be wrong
and the equation for a(n)=v^2 / p which i got 1.25
so i pluged these into the relevant equation to get 2.36 m/s^2 is the magnitude of the boats acceleration

 

[joemama69]

my question is if i did it right or not

 

[Doc Al]

I believe the a(t)=2 <--- May be wrong
and the equation for a(n)=v^2 / p which i got 1.25
so i pluged these into the relevant equation to get 2.36 m/s^2 is the magnitude of the boats acceleration

Sounds good to me.