Save The Fish

Classical Mechanics Level 3

A half filled fish tank springs a leak and takes 10 minutes to empty under its own weight through a hole in its bottom. How much time (in minutes) will it take for the tank to empty if it starts filled with water?

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Save The Fish

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.