Answers
Sol:
In position-time graph, slope represents velocity and rate of change of slope represent acceleration means if slope changes more rapidly acceleration is greater.
Now by using these concepts.
The acceleration at P is negative and magnitude is less while the acceleration at R is positive and magnitude is greater. [Hence less than]
The speed at N is less than that at T. Because slope at N is less that that at T.
The magnitude of the acceleration at T is equal to that at S. Because slope is constant at both points hence acceleration is zero at T and S.
The speed at S is equal to that at T. Because slope is same at both the points.
The x-acceleration at P is less than 0.
Because it is negative.
The speed at U is less than that at T. Because slope is less.
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