Radial and Tengential questions - Help

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To calculate the radial and tangential components of a car's acceleration, one must first understand that radial acceleration is associated with changes in direction, while tangential acceleration relates to changes in speed. The radius of the car's path can be determined using the relationship between these accelerations and the car's speed. A sketch illustrating the car's motion can help visualize these components, particularly the direction of acceleration vectors. Clarifying these concepts will aid in solving the problem effectively.
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Homework Statement



Here, I will just post the question as an image. Never mind the one where I have to sketch, but b and c I am having trouble with.

wilrfd.png


How do you calculate the radial and tangential aspects of the cars acceleration? and from that info, how do I calculate the radius?


Homework Equations





The Attempt at a Solution



The car is speeding up correct?
 
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Anyone?

Thanks, much appreciated!
 
I am having trouble knowing how this sketch should look like?
 

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