Can two equal vects `vec a and vec b` at different locations in space necessarilly have identical physical effects ?

Explanation

(i) In general, a vector has no particular location in space . Because a vectors remains unaffected when displaced anywhere in space in a way that its magnitude and direction remain same . However the position vector has a particular location in space .
(ii) Yes , a vector can very with time , e.g. velocity vector, acceleration vector of a moving particle can very with time
(iii) Two equal vectors `veca and vec b` at different locations in space may not have identical physical effects , e.g . two equal forces which can cause rotation of the body acting at two different points may not produce equal turning effects .