The difference between speed and velocity is that the speed is a scalar quantity which means that you can say that this object has a speed of x m/s but you don't have to define its direction
while the velocity is a vector quantity which means that you have to express the velocity by which it moves in x,y and z directions and its norm is the speed
14 m/s or 50km/h. See the details in the attached picture.
<span>d) While taking a shower, I saw a little mouse scurry across the bathroom floor.
This sentence is ordered properly. </span>