The bombardment!

Classical Mechanics Level 1

An object with mass 28 [kg] and travelling at a velocity of 13.5 [m/s] in space breaks into two smaller pieces. The mass of the larger piece is 21 [kg] and travels at a velocity of 9 [m/s]. What would be the velocity of the other piece?

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The bombardment!

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.