Question

The human arm act as (a. class one lever b. class two lever c. class three lever d. inclined plane)​

Answer 1

Answer:

class 3 lever

Explanation:

The pivot is at the elbow and the forearm acts as the lever arm. The biceps muscle provides the effort (force) and bends the forearm against the weight of the forearm and any weight that the hand might be holding.

Answer 2

Answer:

The human arm act as class 3 lever