Classical Mechanics, Volume 2: Kinematics and uniformly accelerated motion by Gregory A DiLisi

Author:Gregory A DiLisi
Language: eng
Format: epub, mobi
ISBN: 9781643273082
Publisher: IOP Publishing
Published: 2019-07-27T00:00:00+00:00

QUESTION: Where does the bullet land, relative to the car?

POSSIBLE ANSWERS:

The bullet lands behind the car.

The bullet lands in front of the car.

The answer depends on the mass of the bullet.

The answer depends on the speed of the bullet.

The bullet falls back into the car.

What makes experiment #2 a Gedanken experiment? The car and gun can easily be traveling along a perfectly flat road. The gun can easily be aimed vertically since we again imagine we have a laser targeting system and a protractor. So far, this experiment is reasonably cheap, and very ‘do-able.’ The reason this experiment is a ‘thought experiment’ is because again, we perform the experiment in a room with no air! There’s the Gedanken!

3. GEDANKEN EXPERIMENT #3: Before LeBron James, there were the Cleveland Cavaliers of the 1980s. This group of guys was my favorite basketball team. They were a scrappy bunch of players with a blue-collar attitude that executed a great game of team-basketball: crisp passing, tenacious defense, patient offense, and the ability to make their foul shots. My favorite player was a guy named Craig Ehlo. What a scrapper! He was always diving for a loose ball, hustling back on defense, taking the charge. Once after a game, Ehlo stopped by and chatted with my sister, some fans, and me. He posed for pictures and made sure everyone left with an autograph—great player and a nice guy.

For our last Gedanken experiment, imagine Craig Ehlo dribbling across the key. Once again, all the air has been pumped out of the arena. We have an overhead view of his upcoming shot because we are in the rafters looking down at the play. As he moves horizontally across the key, he shots the ball.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.