Vector Quantities Increase/Decrease in Temperature - The measurement of the medium's temperature is a scalar quantity; the measurement of the increase or decrease in the medium's temperature is a vector quantity. Velocity - The measurement of the rate at which an object changes position is a vector quantity.
Answer: velocity has a magnitude and a direction. This quantity is useful in every day lives in many ways. for example when you are driving in a car, its good to know the velocity in which the car is going.
