Columbo had a full drum of water.
He put two holes in the bottom and the water began leaking out.
After a few minutes, Columbo closed off one of the holes in the drum and the water poured out more slowly.
Which graph below best shows the depth of water in the drum against time?
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| A. | B. | C. | D. |
Show Worked Solution
\(\text{The depth decreases quickly at a constant rate at the start}\)
\(\text{(steep decline) and then slows down when one hole is }\)
\(\text{closed (less steep decline).}\)
\(\Rightarrow B\)