a constant net force perpendicular to the velocity of an object causes it to travel in a circular path

constant speed in a circle;
\(v = ωr \)

centripetal acceleration;
\(a = \dfrac{v^2}{r} \); \(a = ω^2r \)

(i) centripetal force;
\(F = \dfrac{mv^2}{r} \); \(F = mω^2r \)

(ii) techniques and procedures used to investigate circular motion using a whirling bung.