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# Difference of the normal force, reaction force and contact force? watch

1. Thanks
2. (Original post by Mihael_Keehl)
Thanks
They're all the same thing.
3. (Original post by Zacken)
They're all the same thing.
oh ok thank.s
4. (Original post by Zacken)
They're all the same thing.
(Original post by Mihael_Keehl)
oh ok thank.s
Normal force is normal to the surface. Reaction force is the force exerted on the object by the surface (which will be the normal plus any friction, and maybe more that I haven't come across). Contact force, I don't know.
5. (Original post by Renzhi10122)
Normal force is normal to the surface. Reaction force is the force exerted on the object by the surface (which will be the normal plus any friction, and maybe more that I haven't come across). Contact force, I don't know.
Thank you.

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