The distance between fulcrum and the point where effort is applied is called the _________ arm.
Hence, the distance between the fulcrum and the effort is called the effort arm.
A fire tongs has its arms 20 cm long. It is used to lift a coal of weight 1.5 kgf by applying an effort at a distance of 15 cm from the fulcrum. Find : (i) the mechanical advantage of the fire tongs , and (ii) the effort needed.
In operating a water pump a resistance of 480 N Is overcome by an effort of 72 N. If the distance of the fulcrum from the point where resistance acts is 0.2 m find the distance from the fulcrum, where effort is applied.
In a machine, a load of 490 N is supported by an effort of 7N. If the distance of fulcrum from the point where the load acts is 10m, find the mechanical Advantage and length of the effort arm.