Multiplication
This quantity is referred to as the PRODUCT.
A product.
In Mathematics, it can mean a number or quantity that when multiplied by itself, typically a specified number of times, gives a specified number or quantity. It can be short for square root or it can be a value of an unknown quantity satisfying a given equation.
A scalar quantity defines only magnitude, while a vector quantity defines both a magnitude and direction.
You have not specified the quantity of water. You cannot measure one fifth of an unspecified quantity.
a vector
The fraction is 140p. If you require it as a fraction of some other quantity then it might help if you specified that other quantity.
Their quotient.
A velocity vector is a quantity that describes the change in position of an object over a specified time, including both the magnitude (speed) and direction of the motion.
Mass, possibly.
True ,velocity is a vector quantity ,it is specified by a magnitude and direction.
Measureable.