Question

Can a body describe a circular motion if the centripetal force is non uniform and there is no tangential force?

Explanation is required!

Asked by an IIT JEE ASPIRANT! ​

Answer 1

Answer:

Yes ;

a body can undergo a circular motion even when centripetal force is non uniform and there is no tangential force.

Explanation:

First of all, centripetal force is a vector (having both magnitude and direction).

[ Now , a vector can be called non-uniform , when either of its magnitude or direction or both changes with respect to time or distance.]

If we consider a uniform circular motion,

there is no tangential force. There is only centripetal force acting on the object .

Now at various instances of trajectory of the object, we can observe that the direction of

centripetal force is different.

Centripetal force will be directed radially inwards but the direction (with respect to a reference point) will be different.

Since the direction of centripetal force changes in the course of motion, we can say that the centripetal force is not uniform.

So the object is describing circular motion in absence of tangential force , even in presence of non-uniform centripetal force.

Answer 2

just report this

friend

will never answer your question....

thanks

in question

u haven't mentioned anything like

CF is non uniform wrt magnitude or direction.....

and also u haven't mentioned whether ur question is for uniform or non uniform circular motion.....

OK..

ask the question properly first