How to Calculate Work in Physics

Physics Ninja looks at 3 different ways to calculate work in physics.
1) Calculate work from a constant force
2) Calculate work from conservative forces
3) Calculate work from a Force vs Position Graph.

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[@aviadgabso8342]

8:43 mistake on rearranging the equation

[@PhysicsNinja]

Oops

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Thumbnail alone earned a like
It makes sense like that

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I’m always working on better thumbnails.

[@eggxecution]

Finally understand the work formula it was derived from the dot product and it is scalar was having a hard time with inclined planes lol. I thought you have to use trigo but no

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[@bonitofleik6906]

I could be commenting late but at 9:21 at example D there should be mg - Fsin30 not the other way around or you get negative force for Fn

[@alicesky9445]

That's what I thought too and you are correct

[@shahirAyoub]

yeah exactly

[@mohammadasrafulhasan1363]

Nice explanation

[@RotshidzwaRapau-so9fc]

can you please apply significant figures in your answer, I don't really know how to round to significant figures?

[@IshanveerSTRIKE]

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[@anishbandaru2838]

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[@angelpagan5289]

How do you find the loss in force

[@user-er1lk3xh9o]

Part d recheck your work and identify the error.for the arrangements of the equation for the first problem

[@AndyMBBallSkills]

sign error for Normal force but the magnitude of friction force, and work are correct. Sorry for the confusion.

[@afrahe3718]

28:53 this doesn't make sense. Shouldn't it be be Wg = -mgy sin theta?

[@sabhyasoni4485]

Work done doesn't depend on the path, so it'd be Wg = mgy, gravity is a conservative force so it doesn't really depend on the path taken, say if it were friction it'd be different as friction is a non - conservative force.

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