Question

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.
• B. Both assertion and reason are correct and reason is not the correct explanation of assertion.
• C. Assertion is true but reason is false.
• D. Assertion is false but reason is true.

Answer 1

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 $–ve$ $x$-direction. Therefore, acceleration also has to be negative.