- #1

RyanH42

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- 16

## Homework Statement

The Particle moves in the plane in a such a way that its polar equation of motion is ## \vec{R}=t\vec{i}+(t^2+1)\vec{j}##.

a)What are its normal and tangential components of accelaration any time t ?

b)Whats the curvature of path any time t ?

## Homework Equations

##\vec{a}=d^2s/dt^2\vec{T}+k\vec{N}d^2s/dt^2##

##k=dθ/ds##

## The Attempt at a Solution

I couldn't find ##ds/dt## I tried but I stucked.

I have no idea to find k but I couldn't find s

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