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.

**(Eq 1) ** $f_n=ma_n$

m = mass

a_{n} = normal acceleration

f_{n} = normal force

**(Eq 2)** $f_t=ma_t$

a_{t} = tangential acceleration

f_{t} = 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.