ShmoopTube

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Thank you We sneak and here's Your shmoop too sure

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brought to you by jelly beans and putting strawberry jelly

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on a bowl of pinto beans is just not the

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same You're just gonna have to trust us on this

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one All right planet axe has a mass of thirty

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by ten to the tenth kilograms Planet jelly bean has

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a mass of five times out of planet acts If

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the two masses air separated by a distance of five

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by ten to eighteen meters what is the gravitational force

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between the two planets And hear the potential answers All

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right Well first of all planet jelly bean sounds delicious

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Unless it's licorice flavored in which case it should be

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renamed planet No thanks Before we get to dessert let's

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figure out the gravitational force of these planets Pretty much

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everything in outer space is really big and really far

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apart So the numbers were dealing with in these calculations

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are hard to even imagine Lucky for us physics helps

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us make sense of the universe To calculate the force

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between two objects The formula we use is as follows

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force equals the gravitational constant times the mass of the

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first object times the mass of the second object divided

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by the square of the distance between them It looks

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a little something like this thing Yeah all right A

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quick aside the negative sign in front of the equation

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indicates that the forces moving in words that is if

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the planets were repelling each other the negative sign wouldn't

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be there So now we can just plug the numbers

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into the equation And when we put these numbers in

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our fancy calculator like this we get a fancy solution

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like this The force of gravity equals negative g Times

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one point eight times ten to the negative fourteenth times

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Kilograms per meter squared Cool But that mouthful is our

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answer which in this case is option a If we

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were to use the gravitational constant in the full numerical

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form while then the answer would be in newton's like

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option b But in this case we're not expanding the

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constant so that wouldn't be the correct unit of measurement

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here Oh if there really were a planet jelly beans

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there'd probably be a lot more people interested in space 00:02:10.83 --> [endTime] travel

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