Mechanical advantage force applied at "A" the end of the rope, and let "F" be the force at "B" on the moving block. Like the velocities "F" is directed downwards and "F" is directed upwards. For an ideal block and tackle system there is no friction in the pulleys and no deflection or wear in the rope, which means the power input by the applied force "F""V" must equal the power out acting on the load "F""V", that is The ratio of the output force to the input force is the mechanical advantage of an ideal gun tackle system, This analysis generalizes
Rope-a-dope take punishment in the belly". Kalinsky told him: "Do what you do in a training session: Act like a dope on the ropes." Ali then replied: "So, you want me to be a rope-a-dope?" According to Angelo Dundee, Kalinsky told Ali: "Why don't you try something like that? Sort of a dope on the ropes, letting Foreman swing away but, like in the picture, hit nothing but air." The publicist John Condon popularized the phrase "rope-a-dope". The maneuver is most commonly associated with the match between Muhammad Ali and George Foreman, known as The Rumble in the Jungle. Foreman was