Groundwork

Classical Mechanics Level 2

A ball is dropped from height \(h\), hits the ground with speed \(v\), and bounces back to a height \(\frac12 h\). If the mass of the ball is \(m\), how much energy is dissipated to the ground by the ball?

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Courses

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Community

100 Day Summer Challenge

Groundwork

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, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

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

Master advanced concepts through explanations,
examples, and problems from the community.

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

Master advanced concepts through explanations,
examples, and problems from the community.

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