Definitions

• Vector is a physical quantity with both magnitude and direction
• Scalar is a physical quantity that has magnitude only
• Resultant vector is the single vector which has the same effect as the original vectors acting together
• Distance is the length of the path travelled
• Displacement is the change in position
• speed the rate of change of distance
• velocity is the rate of change of displacement
• acceleration is the rate of change in velocity
• Position is a vector quantity that points from the reference point as the origin
• know that Displacement is a vector quantity that points from the initial to the final position.