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A particle moves in a circle radius 2m. Its soeen increases at the constant rate 4.2m/s^2....

A particle moves in a circle radius 2m. Its soeen increases at the constant rate 4.2m/s^2. At an instant when the magnitude if the total acceleration is 6m/s^2, what is the soeed of the particle?
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Answer #1

Speed of particle increase or decrease along the tangential component.hence 4.2 m/s^2 taken as Tangential accelartion.

In the given problem firstly we have to find accelartion along radius or radial accelartion using below formula

  

Where a= total acceleration

Now calculate speed of particle V using below formula

Radial accelartion,

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