Can we find its velocity?

Classical Mechanics Level 1

A ball shot straight up from the ground is at the same height after both 4 seconds and 6 seconds. If the acceleration due to gravity is 10m/s\(^2\), what was the initial velocity of the ball?

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.