- #1

RyanH42

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< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown >

In textbook I am troubling understanding the question.Actually I don't know the terms ##\vec{u}_r## and ##\vec{u}_θ##

Here the question.

A particle moves according to the polar equation ##r=1+cosθ##, ##θ=e^t## where t is in seconds are r in feet.What are the ##\vec{u}_r## and ##\vec{u}_θ## components of acceleration of this particle at the instant ##t=ln(π/2)##.

I don't want you to answer the question.I write the question to clearify my question.

I know write accelaration vector in terms of ##\vec{T}## and ##\vec{N}## not ##\vec{u}_θ## and ##\vec{u}_r##.If you can show me how to write it,I can do the question(Thats why I didnt open this thread in Homework section)

Thanks

In textbook I am troubling understanding the question.Actually I don't know the terms ##\vec{u}_r## and ##\vec{u}_θ##

Here the question.

A particle moves according to the polar equation ##r=1+cosθ##, ##θ=e^t## where t is in seconds are r in feet.What are the ##\vec{u}_r## and ##\vec{u}_θ## components of acceleration of this particle at the instant ##t=ln(π/2)##.

I don't want you to answer the question.I write the question to clearify my question.

I know write accelaration vector in terms of ##\vec{T}## and ##\vec{N}## not ##\vec{u}_θ## and ##\vec{u}_r##.If you can show me how to write it,I can do the question(Thats why I didnt open this thread in Homework section)

Thanks

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