Which of the following figures are included in first class levers?
A1, 2 and 4
B1, 2 and 3
C3, 4 and 5
D1, 4 and 5
It is b as first class lever are L-F-E which means fulcrum is between load and effort thus the ans. is scissors, claw hammer, pliers which is option B.
When we take out nail from a surface, the load and efforts are at either ends and fulcrum in the middle.