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toobeerajpanchoo:
HEY | am | I WANNA KNOW HOW U DO TO CALCULATE AREA UNDER GRAPH ALL ITS FORMULAS

Ghost Of Highbury:

--- Quote from: toobeerajpanchoo on October 24, 2009, 12:15:17 pm ---HEY | am | I WANNA KNOW HOW U DO TO CALCULATE AREA UNDER GRAPH ALL ITS FORMULAS

--- End quote ---

if its a speed-time graph...the area under the graph would be the distance covered.

Theres no formula to find it, u have to first identify the shape. It can be a trapezium/square/triangle anything..

find a sample graph below and i have shown how u calculate the area under the graph..

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first identify the shape - trapezium

area of trapezium = 0.5 * (sum of parallel sides) * perpendicuar height = 0.5 * (7+10) * 25 = 212.5cm2

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u can also use integration to find the area.

toobeerajpanchoo:
ALRIGHT I UNDERSTOOD BUT COULD EXPLAIN HOW TO DO THE QUESTIONS IN JUNE 2008 CIE ABOUT KINEMATICS PAPER 1

astarmathsandphysics:
which question?

toobeerajpanchoo:
NO 13
13 The diagram is the speed-time graph of the first 20 seconds of a motorcyclist’s journey.
Speed
(a) Calculate the motorcyclist’s retardation during the final 8 seconds.
(b) Calculate the distance travelled in the 20 seconds.

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