To be honest, as soon as someone (let's not point the finger ;) ) suggested replacing the ball with a spring, I got the suspicion that someone had already googled it. So I googled it too :) Here is the task: http://fiziki.jimdo.com/условия-задач/архив-за-2009-2010-год/кружок-3 Here is the solution: http://fiziki.jimdo.com/решения-задач/архив-за-2009-2010-год/кружок-3 But I think replacing the ball with a spring is not correct as the compression of the ball will be non-linear in the vertical direction. In short, I demand a full-scale experiment!!! Who has a perfectly elastic ball?
Мяч свободно падает с высоты 3м на горизонтальную поверхность. При каждом отскоке модуль скорости мяча уменьшается в 2 раза. Определить путь, пройденный мячом с начала падения до остановки. На теннисный мяч с высоты 1м падает кирпич и подскакивает снова почти на 1м. Оцените, на какую высоту после удара подскочит мяч.
Contender: Frankly, as soon as someone (not pointing fingers ;) ) suggested replacing the ball with a spring, I have a suspicion that someone has googled. So I googled it too :) Here is the task: http://fiziki.jimdo.com/условия-задач/архив-за-2009-2010-год/кружок-3 Here is the solution: http://fiziki.jimdo.com/решения-задач/архив-за-2009-2010-год/кружок-3 But I think replacing the ball with a spring is not correct as the compression of the ball will be non-linear in the vertical direction. In short, I demand a full-scale experiment!!! Who has a perfectly elastic ball?
Ahh, we've been cheated. The problem is a ball, the answer is a spring.
almost 50 is wrong.
Of course not.
and neither is 25.
Of course not.
Do you want to be in the Red Book?
Where's Lech?
Where's Leha?
Yeah, he went straight to the mouth. Fi.
He's busy. He's cooking up another nine-point stunt.
Yeah, I'm gonna go straight to the defense. Fi.
He's busy. He's setting up another nine-point bunt.
For WHAT?!?!
Let him decide by 9, huh?
So I googled it too :)
Here is the task: http://fiziki.jimdo.com/условия-задач/архив-за-2009-2010-год/кружок-3
Here is the solution: http://fiziki.jimdo.com/решения-задач/архив-за-2009-2010-год/кружок-3
But I think replacing the ball with a spring is not correct as the compression of the ball will be non-linear in the vertical direction.
In short, I demand a full-scale experiment!!!
Who has a perfectly elastic ball?
Frankly, as soon as someone (not pointing fingers ;) ) suggested replacing the ball with a spring, I have a suspicion that someone has googled.
So I googled it too :)
Here is the task: http://fiziki.jimdo.com/условия-задач/архив-за-2009-2010-год/кружок-3
Here is the solution: http://fiziki.jimdo.com/решения-задач/архив-за-2009-2010-год/кружок-3
But I think replacing the ball with a spring is not correct as the compression of the ball will be non-linear in the vertical direction.
In short, I demand a full-scale experiment!!!
Who has a perfectly elastic ball?
Ahh, we've been cheated. The problem is a ball, the answer is a spring.
Well, no one can be trusted, no one.