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Who will do more work?

Classical Mechanics Level 1

Who will do more work? A person responding to a phone by picking it up or a person failing at pushing a car a distance (He isn't able to move it).

A person responding to a phone by picking it up A person failing at pushing a car

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

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including olympiad champions, researchers, and professionals.

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by Sharky Kesa

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