Andhra Pradesh Board Solutions for Exercise 15: Improve your learning:

The correct relation between speed, distance and time is:

The distance between two stations is $240$ kilometres. A train takes $4$ hours to cover this distance. Calculate the speed of the train in $\raisebox{1ex}{$\mathrm{km}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{h}$}\right.$.

A train travels at a speed of $180 \mathrm{km}/\mathrm{h}$. How far will it travel in $4$ hours in $\mathrm{km}$? 

When do you say an object is in rotatory motion?

Can an object possess translatory and rotatory motion at the same time? Give an example.

In a sewing machine used by tailors, mention the type of motion of the wheels of the sewing machine's when it runs.

In a sewing machine used by tailors, mention the type of motion of the needles of the sewing machine when it runs.

In a sewing machine used by tailors, mention the type of motion of the cloth of the sewing machine when it runs.