Question

Mention if the following statements are true (T) or false (F).​
(v) Bending of arm on elbow is an example of first order of lever mechanism.

• A. False
• B. True

Answer 1

The correct option is B True

The statement is true.​ ​

Muscles that are present in our limbs have a fixed point i.e. the elbow joint and the knee joint which acts as a fulcrum, and the input and the output forces lie along these joints. Thus they can be called an example of a first-order lever.​