<Li> Class 1 : Fulcrum in the middle : the effort is applied on one side of the fulcrum and the resistance ( or load ) on the other side , for example , a seesaw , a crowbar or a pair of scissors . Mechanical advantage may be greater than , less than , or equal to 1 . </Li>
<Li> Class 1 : Fulcrum in the middle : the effort is applied on one side of the fulcrum and the resistance ( or load ) on the other side , for example , a seesaw , a crowbar or a pair of scissors . Mechanical advantage may be greater than , less than , or equal to 1 . </Li>
where is the fulcrum located in a first class lever
where is the fulcrum located in a first class lever
in the middle
in the middle