Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Principles of biomechanics cannot be applied on workers with static posture
Reason (R) : Biomechanics deals with human body in motion
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A).
• B. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
• C. (A) is correct but (R) is not correct.
• D. (A) is not correct but (R) is correct.

Hint:

Remember that in physics and mechanics, "statics" is the study of forces in stationary systems. Biomechanics uses statics to analyze static posture, making assertion A false.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Biomechanics applies the principles of mechanics (forces, loads, and stress analysis) to study the structure, function, and movement of biological systems.

Step 2: Detailed Explanation:
Let us evaluate both statements:

• Assertion (A): Principles of biomechanics cannot be applied on workers with static posture: This is incorrect. Biomechanics includes both statics (the study of forces acting on bodies at rest or in equilibrium) and dynamics (bodies in motion). Applying biomechanics to workers in a static posture (e.g., prolonged standing or sitting at a desk) is crucial to analyze joint loads, spinal compression, and muscle strain.

• Reason (R): Biomechanics deals with human body in motion: This is correct. A significant branch of biomechanics (dynamics) is dedicated to analyzing the human body in motion (gait analysis, lifting movements, etc.).
Since Assertion (A) is false but Reason (R) is a true statement, Option (D) is the correct selection.

Step 3: Final Answer
The correct option is (D) because biomechanics applies to both static and dynamic physical states.