Answer: In Exercises 3–6, write a in the form at the given

Chapter 12, Problem 5E

(choose chapter or problem)

In Exercises , write a in the form \(a=a_{T} T+a_{N} N\) at the given value of t without finding T and N.

\(r(t)=t^{2} i+\left(t+(1 / 3) t^{3}\right) j+\left(1-(1 / 3) t^{3}\right) k, t=0\)

Equation Transcription:

Text Transcription:

a=a_T T + a_N N

r(t)=t^2 i+ (t+1(1/3)t^3 )j+ (1-(1/3 )t^3 )k, t=0

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