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These questions consists of two statemen...

These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following four responses
Assertion Friction opposes motion of a body.
Reason Static friction is self adjusting while kinetic friction is constant.

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To solve the question, we need to evaluate both the Assertion and the Reason provided. ### Step 1: Analyze the Assertion The assertion states: "Friction opposes motion of a body." - Friction is a force that acts between two surfaces in contact. It generally opposes the relative motion between those surfaces. Therefore, the assertion is **partially correct** because while friction does oppose the relative motion, it can also support motion in certain scenarios (e.g., walking). ### Step 2: Analyze the Reason The reason states: "Static friction is self-adjusting while kinetic friction is constant." - Static friction can vary in magnitude from zero up to a maximum value (the limiting friction), depending on the applied force. This means it adjusts itself to prevent motion until a certain threshold is reached. Kinetic friction, on the other hand, remains constant once the motion has started. Thus, the reason is **correct**. ### Step 3: Conclusion - Since the assertion is partially incorrect (as it does not fully capture the nature of friction) and the reason is correct, we conclude that: - Assertion (A) is **false**. - Reason (R) is **true**. ### Final Answer The correct response is **D: Assertion is false, Reason is true**. ---
To solve the question, we need to evaluate both the Assertion and the Reason provided. ### Step 1: Analyze the Assertion The assertion states: "Friction opposes motion of a body." - Friction is a force that acts between two surfaces in contact. It generally opposes the relative motion between those surfaces. Therefore, the assertion is **partially correct** because while friction does oppose the relative motion, it can also support motion in certain scenarios (e.g., walking). ### Step 2: Analyze the Reason The reason states: "Static friction is self-adjusting while kinetic friction is constant." ...
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