Assertion: In the s–t graph shown in the figure, the velocity of the particle is negative and acceleration is positive.
Reason: The slope of s–t graph is negative and increasing in magnitude.
A
Both assertion and reason are correct and reason is the correct explanation of assertion.
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B
Both assertion and reason are correct and reason is not the correct explanation of assertion.
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C
Assertion is true but reason is false.
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D
Assertion is false but reason is true.
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Solution
The correct option is D Assertion is false but reason is true. Slope is negative. Therefore, velocity is negative.
Velocity is increasing in magnitude along –vex-direction. Therefore, acceleration also has to be negative.