Sorry forgot the rubber ball
Again the centrifugal force and the centripetal force counter one another, but if you do not allow the complete swing in, "this is centripetal force" there is an inbalance for the pair of movements on the first set of swings and so centrafugal force gains and the gravity/out of balance of the beam, sends it down. You need to think of harvesting the centripetal force. Centrifugal force will never send the bar down. The rubber ball is stopping the full cycle.
Michael N
Again the centrifugal force and the centripetal force counter one another, but if you do not allow the complete swing in, "this is centripetal force" there is an inbalance for the pair of movements on the first set of swings and so centrafugal force gains and the gravity/out of balance of the beam, sends it down. You need to think of harvesting the centripetal force. Centrifugal force will never send the bar down. The rubber ball is stopping the full cycle.
Michael N
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