Question

in uniform circular motion is net force zero or not

Answer 1

in uniform circular motion net force is not zero as velocity keeps on changing coz the direction is changing due to which acceleration also changes

Answer 2

hii dear,
in uniform circular motion, net force is not zero.
I suppose that u r talking about centripetal force in UCM (UNIFORM CIRCULAR MOTION)
net force causes acceleration. acceleration is the chance in velocity. velocity is the speed of something and it's direction .. These all the terms goes side by side.
The net centripetal force in uniform circular motion does not change the speed, but the direction.

hope it helps you!!