In the first image (with the hand) is a stopper attached to a fishing line that is threaded through a glass rod with a mass hanging from it. In the second image, this apparatus is used to produce circular motion in a vertical plane, keeping the stopper moving at a constant speed. Using the second image, draw a free body diagram of the stopper when it is at its highest point and also at the bottom position.
In the first image (with the hand) is a stopper attached to a fishing line that is threaded through a glass rod with a mass hanging from it. In the second image, this apparatus is used to produce circular motion in a vertical plane, keeping the stopper moving at a constant speed. Using the second image, draw a free body diagram of the stopper when it is at its highest point and also at the bottom position.
The stopper attached to the fishing line is rotated in a vertical plane, with a constant velocity, in a circular path of radius r.
Any object performing circular motion is acted upon by a centripetal force, which is a necessary force for circular motion.
This centripetal force acts along the radius of the circular path, towards the center, and is given as
m is mass of the object
v is its velocity
And along with this centripetal force, the other force acting on the object will be its weight or the gravitational force, acting vertically downwards.
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