H4O1D2O1G2R1A1P3H4S1
20 points
HODOGRAPHS is validvalid
HODOGRAPH, a graph where radius represents velocity [n]
HODOGRAPH, a curve of which the radius vector represents the velocity of a moving particle [n]
HODOGRAPH, a graph where radius represents velocity [n]
HODOGRAPH, a curve of which the radius vector represents the velocity of a moving particle [n]