Question

state the class of lever and relative position of load, effort and fulcurm on (i)bottle opener (ii) A see-saw​

Answer 1

i ) bottle opener: second (II) class of lever, here the Load L is in between the effort E and the Fulcrum F.

ii) A see-saw : Is a lever of class (I) , here Fulcrum F lies between Load L and Effort E

hope it helps