Physics of Circular Motion (part II)

[TheLocalNut]

Thank you.

[cooleeme]

Which has greater magnitude? The normal force or the weight?

[KeiUKtv]

@cooleeme If the car is not floating and it's not sinking into the ground they should be equal in force.

[KeiUKtv]

@KeiUKtv mg (Weight of the car.) = Fn ( The force pushing upwards on the car.)

[Luuuuuuuuuuuuulz]

hey, why is there a normal force going downward at the top of the loop? :S

[mangaka08]

@Luuuuuuuuuuuuulz Because the normal force is pushing in the opposite direction when the track is upside down. If you were on top of the track, the normal force would be pushing you up, but if you're below the track, it's still pushing you "up", but your new "up" is now downwards.

[Luuuuuuuuuuuuulz]

@mangaka08 ooooo the force of inertia is pushing u down, then the normal force pushes u up, but since you're upside down, the normal force is down?

[mickeystandbee]

I see you're married....truthfully ANYONE in my school would marry you.

cause damn, you help me pass my tests

[DriggerX900]

what if you wanted to find it at some arbitrary point along the circle...not the top/bottom

[tiktak1994]

So clearly. Thank you alot

[dmklyvid]

So much clearer than any text book, Thank you!

[Gazzawey]

Thnx sir

[PairInstabilityType]

you have no idea how helpful your videos are :D I keep getting 'ah-ha!' moments when watching them

[GrimmParadice]

u helping me alot mehn.... respect...

[atailor94]

Please continue with the videos, they are incredibly helpful.

[SukiDarke]

I cannot thank you enough for these videos. You are actually explaining what my teacher does not even teach.

[Jokershere]

why doesn't my teacher teach me with ladybugs and cute drawings,

[kharchangzade]

Good job

[KillerZero259]

great video!!

[lasseviren1]

No. For each situation you have to figure out the net force by drawing the free-body diagram.

[liletta353]

So if its accelerating toward the centre is Fnet always Fn-mg?

[BenOmarbaOmar]

nice one man thank you (^_^)