What is the quantity which is measured by the area occupied below the velocitytime graph?

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Chapter 7 NCERT Class 9 Science SOLUTIONS

4. What is the quantity which is measured by the area occupied below the velocitytime graph?

Question:

What is the quantity which is measured by the area occupied below the velocitytime graph?

Answer:

The quantity which is measured by area occupied below the velocity-time graph is, distance (resultant of displacement) travelled by the object in given time interval.

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(All Q's of this Chapter solved)

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A stone is thrown in a vertically upward direction with a velocity of 5 ms–1. If the acceleration of the stone during its motion is 10 ms–2 in the downward direction, what will be the height attained by the stone and how much time will it take to reach there?

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A racing car has a uniform acceleration of 4 m s–2. What distance will it cover in 10 s after start?

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A train is moving with a speed of 90 km/h. When brakes are applied, a retardation of 0.5 m/s2 is produced. How much distance will the train cover before it stops and how long will it take?

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What can you say about the motion of an object if its speed time graph is a straight line parallel to the time axis?

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