What is the difference between a vector and a scalar? a A vector is only measured in SI units, where scalars are only measured in US Customary units b A vector is only used in measuring forces, a scalar is only used in measuring mass c A vector measurement is required for distance, a scalar measurement is required for displacement d A vector measurement contains a direction and magnitude, a scalar measurement only contains a magnitude

d) A vector measurement contains a direction and magnitude, whereas a scalar measurement only contains a magnitude.