Do Scales Work In Elevators?

Classical Mechanics Level 1

A boy stands on a scale in an elevator (lift) while it is stopped and the scale reads 40 kg. What will the scale display when the elevator begins to ascend?

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Do Scales Work In Elevators?

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100 Day Summer Challenge

Do Scales Work In Elevators?

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.