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Dynamics: Normal and Tangential Forces



Normal and Tangential Forces

Normal and tangential forces result from the normal and tangential accelerations that were presented in kinematics of a particle; to calculate the normal and tangential forces equations 1 and 2 would be used.

Normal Force equation (1)

m = mass

an = normal acceleration

fn = normal force


Tangential Force equation (2)

at = tangential acceleration

ft = tangential force


This means that even if a particle has a constant velocity, if it is going around a curve it can still develop a normal force, and if it's accelerating around the curve it will have a normal force along with a tangential force.




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