A lift is going up. variation in speed of lift is as given in graph. height to which lift takes pass

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2.Motion in Straight Line

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A lift is going up. The variation in the speed of the lift is as given in the graph. What is the height to which the lift takes the passengers..........$m$

A

$3.6$

B

$28.8$

C

$36$

D

Cannot be calculated from the above graph

(IIT-1970)

Solution

(c)Area of trapezium $ = \frac{1}{2} \times 3.6 \times (12 + 8) = 36.0\;m$

Standard 11

Physics

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