- #1
madah12
- 326
- 1
In a lot of physics book there is an example of a problem saying that we tie a bucket of water to a string and move it with vertical circular motion what is the minimum speed ,and the way they told us to solve these problem is to set the normal force to 0 then solve for v ,but I never actually got why is that? I mean when there is higher normal force wouldn't the water have a higher tendency to fall? because the bucket is pushing on it with greater force then it will have greater acceleration that is pointing downwards ,so can you tell me why do we set the normal force to zero and why is my understanding that the normal force will increase its tendency to fall is wrong?