ShmoopTube

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Thank you We sneak And here's your shmoop dooz your

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brought to you by wooden blocks Some kids like to

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build bridges or houses with him We tried to build

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particle colliders Well physics was always in our blood All

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right a ten kilogram wooden block explodes and splits into

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two equally sized pieces that fly apart in opposite directions

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One piece has a speed of three meters per second

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what's the speed of the other And here the pendulum

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answers to three six All right well luckily when we

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were playing with wooden blocks they didn't spontaneously explode That

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might have been pretty fun known Kind of cool to

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watch All right now since we're dealing with two objects

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moving in different directions one velocity will be positive and

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the other will be negative They each start out it

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zero since they're not moving And because these objects are

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of equal mass and because their movement starts because of

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the same force their momenta cancel each other out if

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we adam together But we still get zero just like

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how they started So let's get to the math We

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have the two momenta which will label and wanted him

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to linear momentum equals mass times velocity right Since the

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total mo mentum equals zero we can subtract one moment

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Um from the other two Get zero and then we

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can plug in our numbers since the block split evenly

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into the mass for each block is five kilograms and

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we know one half's velocity is three meters a second

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But when we do the math we see that the

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other half's velocity is also three meters per second making

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option b the right answer Now we did some math

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to get there but we could have gotten the same

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answer by just thinking about our old friend ike Yeah

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Isaac newton Powdered wig in ala He's still the man

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newton's third law states that for every action there is

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an equal and opposite reaction Right We had a tattoo

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Well that's what we put on our body So in

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this explosion since one half takes off at three meters

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per second wonder action the other piece has to do

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the same just in the opposite direction But even if

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we were to choose be right off the bat It's

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Always good to know how the math works so we

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can prove just how Smart We are right Sheldon bazinga

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We were never able to prove our young genius with

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blocks It turns out that it's pretty difficult to make

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a particle collider with him but no worries though We 00:02:15.385 --> [endTime] still made sure there was a collision Sorry mom

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