Answer:
Similarities:
Both speed and velocity are measured in m/s SI unit.
Both are physical quantities.
Differences:
Speed
scalar quantity
rate of change of position of an object/an object's position in any direction
may or may not be equal to velocity.
always positive.
always has the same value
measures the distance travelled over the change in time.
describes how fast a body moves.
Velocity.
vector quantity
rate at which an object changes a direction at some position/velocity is the rate and direction of an object's movement
can be positive, negative, or zero
measures displacement/change in position over the change in time.
describes the object's speed and the direction it takes while moving.
can take on different values.