Recent content by Koko$

The ball is set into motion on circular path of radius R. Ball is connected to a string, at the bottom of the string, the force acting downward is applied, so the radius(R) is decreased. I found similar problem in web, but there is no force applied, but the mass M. So maybe I should just...

Homework Statement Ball of mass=m on the frictionless table is connected to a string that passes in hole that is in table. The ball is set into a circular motion on a circle of radius = R. If the string pulled from the bottom, withe the force F, so that the radius of motion of ball would...

Hello all. I am Kokos and I am new here, searching for help in physics. I do not know much about physics and solving a homework was always a problem for me, so googling on internet i found this website. So if somebody can help me - explain, or solve, help me to understand the problem - i really...