- #1

Fyei

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## Homework Statement

A car has a variable veloctiy given as a funtion of distance s by 1 +2s. What its accleration when it has traveled 10m and how far has it traveled in 4s.

## Homework Equations

[tex]a(s)=v\frac{dv}{ds}[/tex](i think?)

[tex]a=\frac{d^2s}{dt^2}[/tex]

## The Attempt at a Solution

accleration at 10m

[tex]a(s)=v\frac{dv}{ds}=(2s+1)(2) = (4s+2)[/tex]

[tex] a(10) = 42ms^-2[/tex]

however i am unsure how to do the second part as velocity is already a function of distance, is it solved using the chain rule?

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