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1D Kinematics
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.
Concept Quizzes
The highest rate a public bus may accelerate or decelerate at is \(1.4\text{ m/s}^2\) due to safety reasons. If the distance between two stations is \(800\text{ m},\) what is the approximate maximum possible instant velocity of the bus while traveling between those two stations?
Assume the road is straight and free of traffic. The bus must come to a complete stop at the stations.
Excel in math and science
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It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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examples, and problems from the community.
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An arrow is uniformly accelerated while traveling \(12 \text{ cm}\) until it leaves the bow. If the arrow leaves the bow with a velocity of \(6\text{ m/s},\) what is the acceleration of the arrow while it is inside the bow?
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
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The engineer of train \(A\) moving with a constant velocity of \(36\text{ m/s}\) sights train \(B\) on the same track coming towards him at a speed of \(22\text{ m/s}.\) The engineer of train \(B\) sights train \(A\) at the same time. Both drivers immediately apply the brakes, and both trains acquire an acceleration of \(-2\text{ m/s}^2\) each. What must be the minimum distance between the two trains to avoid a head-on collision?
Excel in math and science
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It's hard to learn from lectures and videos
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Our wiki is made for math and science
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A body falling freely from a tower of height \(h\) covers a distance of \(\frac{4h}{5}\) in the last \(6\text{ seconds}\) of its motion before hitting the ground. What is the approximate height of the tower?
The gravitational acceleration is \(g=10\text{ m/s}^2,\) and \(\sqrt{5}\) is approximately \(2.236.\)
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.
A body is moving in a straight line with initial velocity \(v_0\) and constant acceleration \(a.\) The distance traveled by the body at \(t=2\text{ s}\) is \(18\text{ m},\) and the distance traveled at \(t=4\text{ s}\) is \(48\text{ m}.\) What is the distance traveled by the body at \(t=8\text{ s}?\)