Better Safe Than Sorry

Classical Mechanics Level 1

You are driving a car at \(90\text{ km/h}\). Suddenly, you see a large sinkhole \(200\text{ m}\) ahead on road. You quickly brake at the time you see the sinkhole with a constant deceleration of \(1.25\text{ m/s}^2\). What will happen to your car?

Assume the sinkhole is really big, so the car doesn't fly over it.

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100 Day Summer Challenge

Better Safe Than Sorry

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Courses

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Community

100 Day Summer Challenge

Better Safe Than Sorry

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.