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Physics · MOTION IN A STRAIGHT LINE

हिन्दी

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The position-time graph of an object with negative acceleration curves downward. Reason (R): Negative acceleration means the slope of the position-time graph is negative and decreasing. In the light of the above statements, choose the correct answer from the options given below:

  1. Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. (A) is true but (R) is false.
  4. (A) is false but (R) is true.

Correct answer · Option 3

(A) is true but (R) is false.

Explanation

Negative acceleration causes the position-time curve to open downward (concave down), but the slope itself represents velocity, which may be positive or negative.
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