Assertion: coordinate's position | /r/HasProperty | x(s
Facets:
Source sentences:
text: For a bead sliding on a frictionless wire subject only to gravity in 2d space, the constraint on the bead can be stated in the form f(r) = 0, where the position of the bead can be written r = (x(s), y(s)), in which s is a parameter, the arc length s along the curve from some point on the wire.