Question

Straight Push-Ups is an example of-

• A. Law of Inertia
• B. First Class Lever
• C. Second Class Lever
• D. Third Class Lever

Hint:

Fulcrum at the toes, load in the middle, effort at the arms.

Answer 1

The Correct Option is C

Step 1: Draw the body position:
Picture a person in the push-up position. The body is a straight rod from the toes to the shoulders.

Step 2: Locate the three points:
The toes touch the floor, so the toes are the fulcrum. The body weight acts near the middle of the rod. The arms push at the shoulder end.

Step 3: Find who is in the middle:
Going along the rod: fulcrum at one end, load in the middle, effort at the other end. Load in the middle means second class.

Step 4: Remove the wrong options:
The Law of Inertia is not a lever at all. First class needs the pivot in the middle and third class needs the effort in the middle, so both fail.

Step 5: Answer:
The correct option is (3).

Final Answer:
Push-ups work as a second class lever. \[ \boxed{\text{Option 3}} \]