Question

What type of lever is formed by the human body while (a) raising a load on the palm, (b) raising the weight of body on toes?

Answer 1

(a) Class III.

Here, the fulcrum is the elbow of the human arm. Biceps exert the effort in the middle and load on the palm is at the other end.

(b) Class II.

Here, the fulcrum is at toes at one end, the load (i.e. weight of the body) is in the middle and effort by muscles is at the other end.