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Physics
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?
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Q. 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?
Motion in a Straight Line
A
3.6 m
23%
B
28.8 m
13%
C
36.0 m
53%
D
Cannot be calculated from the above graph
11%
Solution:
Area of trapezium $ =\frac{1}{2} \times 3.6\times(12 + 8) = 36.0\,m$