(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Show that d^2 R / dt^2 is NOT a scalar which is a multiple of d^2 R / ds^2 where R is a vector, s is arc length

2. Relevant equationsand3. The attempt at a solution

I was thinking maybe it has something to do with the fact k = |d^2 R / ds^2|

a = d^2 R / dt^2 = d|v|/dt * T + k |v|^2 N

so perhaps intuitively it can't be a multiple??? I'm not really sure how to go about this.....

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Acceleration & arc length

**Physics Forums | Science Articles, Homework Help, Discussion**