Distance and Displacement

Look at the below image of right angle triangle ABC.

 Find the distance and displacement from A to C, if  $AB= 4 \mathrm{km}$ and $BC= 3 \mathrm{km}$?

What is the formula of distance and displacement?

Calculate the time taken by light to pass through a nucleus of diameter $1.56\times {10}^{-16} \mathrm{m}$. (Take the speed of light to be $c=3\times 108 \mathrm{m}/\mathrm{s}$).

What is the formula of distance?

List the units used for measurement of distance.

Why large distances do not use metres or kilometres in measurement?

The symbol $\text{'}\mathrm{au}\text{'}$ is used to represent which unit in astronomy?

It is convenient to express the distance between heavenly bodies in kilometres.

List two units used for the measurement of distances between heavenly bodies.

Why are the distances between heavenly bodies are not expressed in the units of meters or kilometres?

Which of these is true?

A boy sees the lightning in a thunderstorm $5$ seconds before he hears the thunder. If sound travels at $340 \mathrm{m}/\mathrm{s}$ in the air, how far away (in meters) is the thunderstorm?

A train takes $6$ hours to reach Indore from Delhi. If it moves with the speed of $70 \mathrm{k}\mathrm{m}/\mathrm{h}$ and the distance between Indore and Delhi is $D \mathrm{km}$, then find the value of $D$.

How far would a roadrunner go travelling at a speed of $35 \mathrm{m}/\mathrm{s}$ in $700 \mathrm{s}$?

A car moves with a speed of $40 \mathrm{km}/\mathrm{h}$ for $15 \min$ and then with a Speed of $60 \mathrm{km}/\mathrm{h}$ for the next $15 \min$. The total distance covered by the car is

A train takes $6$ hours to reach Punjab from Delhi. If it moves with the speed of $70 \mathrm{k}\mathrm{m}/\mathrm{h}$ find the distance between Punjab and Delhi.

The distance between two cities is measured in kilometer.  

The distance travelled in unit time by an object is called its _____.

A man covers a total distance of $900 \mathrm{km}$ on his motor bike with an average speed of $45 \mathrm{km}/\mathrm{h}$. How much time does he take?