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?
Correct answer: C. 36.0m
- A. 3.6m
- B. 28.8m
- C. 36.0m
- D. 72.0m
Explanation
Step 1: Understand the given v-t graph and the question. The v-t graph shows the velocity of a lift over time. We need to find the height to which the lift takes passengers. Step 2: Calculate the displacement (height) from the v-t graph. The graph is a trapezium. The area = (1/2) x (sum of parallel sides) x distance between them = 3.6 x 2 + 3.6 x 8 = 7.2 + 28.8 = 36 m.
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