Identify the class I levers in the following.
Classify the following into levers as class I, class II or Class III :
(a) a door (b) a catapult
(c) a wheel barrow (d) a fishing rod.
State the class of levers in sugar tongs and a bottle opener.
State the class of levers and the relative positions of load, effort, and fulcrum in the following cases:
a)Bottle opener
b)Sugar tongs
Bottle opener is an example of a class 2 lever.