Home/Basic Physics/2D and 3D Motion/Vector displacement3. 2D and 3D MotionVector displacementIn 3. 2D and 3D MotionFormulaCopy LaTeXΔr⃗=r⃗f−r⃗i\Delta\vec r=\vec r_f-\vec r_iΔr=rf−riTagskinematicsphysicsphysics formulamotion 2D 3DprojectilesDetailThe vector displacement is the difference between the final and initial positions.Explore the ideaExplore the ideaFound an error? Contact us.Related formulasRelatedPosition vectorr⃗=xi^+yj^+zk^\vec r=x\hat i+y\hat j+z\hat kr=xi^+yj^+zk^Open formulaOpen in sectionRelatedAverage vector velocityv⃗med=Δr⃗Δt\vec v_{\text{med}}=\frac{\Delta\vec r}{\Delta t}vmed=ΔtΔrOpen formulaOpen in section