Sometimes we solve the problems without going into the
physical insight of the situational problems Situational problems need physical insight
that is introduction of physical laws and some symbols to compare the mathematical
results obtained with practical values To solve many problems faced by us, we need a
technique and this is what is known as mathematical modelling Let us consider the
following problems:
(i)
To find the width of a river (particularly, when it is difficult to cross the river)