- #1
Chenkel
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- TL;DR Summary
- In a Walter Lewin lecture the wrecking ball was released at the height of the glass and ended up breaking the glass
[Mentor Note -- post appears to have been edited based on post #2]
Hello everyone! I was watching a Walter Lewin lecture and saw him do something very dangerous, he released a wrecking ball at a certain height from the ground, upon returning the ball did not smash his head. If you watch the video, you see him touch some glass with the ball, release it at seemingly 0 velocity, and the ball comes back, and smashes the glass! Wouldn't you expect the ball to not touch the glass on the return journey? That's what I'm confused about, here's the video, the segment is about 46:36 into the video
Hello everyone! I was watching a Walter Lewin lecture and saw him do something very dangerous, he released a wrecking ball at a certain height from the ground, upon returning the ball did not smash his head. If you watch the video, you see him touch some glass with the ball, release it at seemingly 0 velocity, and the ball comes back, and smashes the glass! Wouldn't you expect the ball to not touch the glass on the return journey? That's what I'm confused about, here's the video, the segment is about 46:36 into the video
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