MythBusters Bullet Fired Dropped

http://atomoemeio.blogspot.com/
Os apresentadores da popular série MythBusters do Discovery Channel propuseram-se verificar experimentalmente a resposta à questão com que todos os estudantes de Física já se depararam: Qual cairá primeiro, uma bala disparada ou uma bala largada da mesma altura?
Segundo Adam e Jamie, a experiência nunca antes tinha sido tentada com uma arma real.

Mais uma vez se comprova: se as condições iniciais do movimento na vertical forem as mesmas, o tempo de queda será idêntico.

http://atomoemeio.blogspot.com/2009/11/estudo-do-movimento-qual-cai-primeiro....

Category:

Education

Tags:

• MythBusters
• Bullet
• Fired
• Dropped
• Physics
• Física
• Lançamentos

[VicariousReality7]

What the hell are they TESTING?

[gaymarthajones]

@stewke89 Gravity you fucktard.

[TheAmishpatel94]

They are testing to see if the concept of projectile motion stands or not. Projectile motion is a motion of an object that undergoes force of gravity only and nothing else except that. You might say that it was fired and a force was given...but after that, only force that is acting on the object is gravity and hence, it will experience a downward force and the object is bound to come down to the ground unless it passes the escape speed. And yeah...this experiment proves the concept of projectile

[DavyDevil666]

Is it just me thats from the UK and is shocked to find out that there is a different narrator for this

[Riou2294]

@stewke89 no it's gravity. bullets, shot straight, will fall right from the barrel at the same rate as a ball dropped from your hand. its just that they go horizontally as well. so, yeah, if you shot the bullet from a higher altitude it would go way over a mile, or if you pointed the gun at a 45 degree angle, but bullets don't defy gravity. ever

[raydredX]

@VicariousReality7 They seeing which bullet hits the ground first. Both dropped at the same time.

[jm357m]

What if the shell had an inferior amount of gunpowder and only came out of the bullet at half the speed it normally would?

[teundilles]

@KenworthW900HG If you would perform it in a perfect vacuum, the results would be the same. A paper plane gets slowed down by the air.

[KenworthW900HG]

I assume that if you were to perform this test with two paper aeroplanes it would not yield the same results? Or is the prinicple the same?

[ichiboa]

@Winstonsicle

The acceleration due to gravity is in the same direction along all points of not only the bullets trajectory, but also both the satellites. Gravity always "pulls" in the radial direction. The magnitude of the force would change as you got closer to the earth, but the change in magnitude is negligible for the bullet. As for the two satellites at any given height they would have the same accel. The difference being the orbital undergoes change in direction not speed.