Mechanical advantage of a machine is 4. It is used to raise a load of 30 kgf. What is the effort needed?
A machine requires an effort of 15 kgf for a load of 40 kgf. Find its mechanical advantage.
Draw diagrams to illustrate the positions of fulcrum, load and effort, in each of the following :
(a) A seesaw (b) A common balance
(c) A nut cracker (d) Forceps.
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.