What is the acceleration normal to PC in polar coordinates?

Jahnavi · Nov 13, 2017

In a direction perpendicular to the line joining C and the particle P at any instant ?

How does that help ?

haruspex · Nov 13, 2017

Jahnavi said:

In a direction perpendicular to the line joining C and the particle P at any instant ?

Yes. So what equation can you write?

ehild · Nov 13, 2017

Jahnavi said:

Please explain how do we infer this from the question .

It was a guess, you do not know the magnitude of the force. But you can see that the radial component is zero, and the tangential part changes sign at C.
You can imagine a force, proportional to the distance between points C and P.

Jahnavi · Nov 13, 2017

haruspex said:

Yes. So what equation can you write?

Sorry . I don't know . Can you tell what needs to be done .

haruspex · Nov 13, 2017

Jahnavi said:

Sorry . I don't know . Can you tell what needs to be done .

I used polar coordinates with origin at C.
In those coordinates, what is the general expression for the acceleration normal to PC?

What is the acceleration normal to PC in polar coordinates?

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What is the acceleration normal to PC in polar coordinates?

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