# How do you find average value of normal acceleration?

1. Mar 3, 2012

### gikiian

1. The problem statement, all variables and given/known data

Find average value of Normal Acceleration from the information given. (See the picture)

2. Relevant equations

$a^{→}_{ave}= Δv^{→}/Δt$

$a_{t}$=Δv/Δt

3. The attempt at a solution

I took the difference of the given angles in radians and divided it twice by Δt and get 3.6 rad/$s^{2}$ but the answer was wrong as expected. Please help.

File size:
5.9 KB
Views:
168
2. Mar 3, 2012

### tiny-tim

hi gikiian!

no, rad/s2 is angular acceleration, isn't it?

you need the normal component of the ordinary (linear) acceleration

3. Mar 3, 2012

### gikiian

Hey tiny-tim!

I have successfully obtained the linear acceleration vector. Would you now like to tell me with respect to what entity should I compute the normal component of it?

4. Mar 3, 2012

### gikiian

Hey tiny-tim!

I have successfully obtained the linear acceleration vector. Would you now like to tell me with respect to what entity should I compute the normal component of it?

5. Mar 3, 2012

### tiny-tim

my inclination would be to use the direction halfway between the two velocities

6. Mar 4, 2012

### gikiian

You can'y do that.