. What is Non-Uniform Circular Motion


Best Answer

If the speed of the particle moving in a circle is not constant, the acceleration has both the radial and the tangential components:

i. Radial (centripetal) component of acceleration causes the change in the direction of velocity. It is direct towards the centre and has a magnitude av2/r. As the radial component perpendicular to velocity, it is also called normal component of acceleration denoted as av2/r.

ii. Tangential component of acceleration causes the change in magnitude of velocity. It is directed along the tangent and its magnitude is decided by the net tangential force acting on the particle. Its magnitude is given by at as:

dv/dt, where v is the speed of the particle.

The tangential acceleration is in the direction of motion if the particle speeds up and opposite to the direction of motion if the particle slows down.

 

 

 

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