4. Distinguish between a vector and a scalar. Give an example of each. (3mks)

vector is a physical quantity that has both magnitude and direction. It is represented by an arrow, where the length of the arrow represents the magnitude and the direction of the arrow represents the direction of the vector. Examples of vectors include displacement, velocity, acceleration, and force.<br /><br />On the other hand, a scalar is a physical quantity that has only magnitude and no direction. It is represented by a numerical value. Examples of scalars include mass, temperature, and time.<br /><br />In summary, the main difference between a vector and a scalar is that a vector has both magnitude and direction, while a scalar has only magnitude.