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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.
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2D 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
Challenge Quizzes
A \( 9 \text{ kg} \) body is projected horizontally at \( 12 \text{ m/s} \) from a height of \( 245 \text{ m}. \) What is the magnitude of the body's vertical velocity when it strikes the ground?
The air resistance is negligible and the gravitational acceleration is \( g = 10 \text{ m/s}^2. \)
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.
A ball of mass \( 3 \text{ kg} \) is projected from the ground with a velocity of \( 30 \text{ m/s} \) in a direction that makes a \( 30 ^\circ \) angle with the horizon. How far does the ball fly horizontally?
Ignore any air resistance and assume that gravitational acceleration is \( g = 10 \text{ m/s}^2. \)
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.
A body of mass \( 2 \text{ kg} \) is projected horizontally with a velocity of \( 3 \text{ m/s} \) from a height of \( 45 \text{ m}. \) How far does the body fly horizontally?
Ignore any air resistance and assume that gravitational acceleration is \( g = 10 \text{ m/s}^2. \)
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.
A body of mass \( 6 \text{ kg} \) is projected horizontally with a velocity of \( 12 \text{ m/s} \) from a height of \( 80 \text{ m}. \) How long does it take for the body to touch the ground?
The air resistance is negligible and the gravitational acceleration is \( g = 10 \text{ m/s}^2. \)
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.
A body of mass \( 6 \text{ kg} \) is projected horizontally with a velocity of \( 45 \text{ m/s} \) from a height of \( 180 \text{ m}. \) Find the magnitude of its velocity at the moment it touches the ground.
Ignore any air resistance and assume that gravitational acceleration is \( g = 10 \text{ m/s}^2. \)