Compare the magnitude of centrifugal and centripetal force.(show the working part also)
If you set your reference frame to be fixed to the swing (let's call the origin the pivot point of the swing), you are now dealing with a?rotating reference frame.
In a rotating reference frame, all objects observe a?centrifugal forcethat pulls them outwards from the origin. For any stationary object in your rotating reference frame (the seat on the swing), the sum of forces must be equal to 0. The?name?we've ascribed to?whatever force?is equal and opposite to the centrifugal force is "centripetal force".
In your case, this magical "centripetal force" is some combination of the tension in the swing's chain/rope and the force due to gravity acting on whatever is in the seat of the swing.
In a rotating reference frame, all objects observe a?centrifugal forcethat pulls them outwards from the origin. For any stationary object in your rotating reference frame (the seat on the swing), the sum of forces must be equal to 0. The?name?we've ascribed to?whatever force?is equal and opposite to the centrifugal force is "centripetal force".
In your case, this magical "centripetal force" is some combination of the tension in the swing's chain/rope and the force due to gravity acting on whatever is in the seat of the swing.