## College Physics (4th Edition)

(a) We can find the magnitude of the displacement: $\sqrt{(39~km)^2+(22~km)^2} = 44.8~km$ (b) The total distance when traveling from Killarney to Mallow and then to Cork is $39~km + 22~km$ which is $61~km$. We can find the additional distance traveled: $61~km-44.8~km = 16.2~km$