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Troubleshoot my shitty physics pls
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File: opening a gate.png (40 KB, 1071x828) Image search: [iqdb] [SauceNao] [Google]
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If torque is the cross product of R and F, doesnt that imply that a perpendicular force on, say, a door, should produce no force?

magnitude of cross product = |r| x |F| x cos(θ)

Where r is the vector from the hinge to the application of force.

Isnt θ here pi, making cos(θ) = 0 and thus making the magnitude zero?

What part of this have I misunderstood?
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>>7812973

Whoops, I meant
>isnt θ here pi/2

of course
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File: torque.png (38 KB, 1357x289) Image search: [iqdb] [SauceNao] [Google]
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>>7812973
>cos(θ)
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>mixing cross product with multiplication
>cos(θ)
u wut m8
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>>7812973

>magnitude of cross product = |r| x |F| x cos(θ)
no it's not you mongrel
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Are you saying you're trying to open a door by pulling on the top of it?