Question

what is liver and what is meant by first class lever and second class lever and third class lever​

Answer 1

Answer:

First class levers have the fulcrum between the force and the load. ... In second class levers the load is between the effort (force) and the fulcrum. A common example is a wheelbarrow where the effort moves a large distance to lift a heavy load, with the axle and wheel as the fulcrum.