Question

$\color{red}{\large\underline{\underline\mathtt{Question:}}}$
$\textsf{Please Solve this}$

Answer with Explanation:-
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Answer 1

SoLuTiOn :

★ Calculation of time taken to travel distance in air :

We're given with :

• Speed = 340 m/s

• Distance = 1700 m

$\bigstar \: \: \sf \: Time \: taken = \dfrac{Distance \: covered}{Speed}$

→ Time = $\sf\ \dfrac{1700}{340}$

→ Time = 5 seconds

$\therefore$ Time taken to travel a distance of 1700 m in air is 5 seconds.

★ Calculation of time taken to travel distance in water :

• Distance = 1700 m

• Speed = 1360 m/s

$\bigstar \: \: \sf \: Time \: taken = \dfrac{Distance \: covered}{Speed}$

→ Time = $\sf\ \dfrac{1700}{1360}$

→ Time = 1.25 seconds

$\therefore$ Time taken to travel a distance of 1700 m in air is 1.25 seconds.

Answer 2

Answer:

$\large\tt\color{red}\underline{\underline{Question:}}$

$\textsf{Assuming the speed of sound in air equal to 340 m s-1}$

$\textsf{and in water equal to 1360 m s-1 , find the time taken}$

$\textsf{to travel a distance 1700 m by sound in (i)air and}$

$\textsf{(ii) water}$

$\large\tt\color{blue}\underline{\underline{Given:}}$

$\textsf{Speed of sound in air = 340 m s-1}$

$\textsf{Speed of sound in water = 1360 m s-1}$

$\textsf{Distance travelled by sound in water and air = 1700 m}$

$\large\tt\color{green}\underline{\underline{To\:find:}}$

$\textsf{• Time taken by the sound travelled in air}$

$\textsf{• Time taken by the sound travelled in water}$

$\large\tt\color{pink}\underline{\underline{We\:know:}}$

To find the time use this formula :

$T=\frac{D}{S}$

$\textsf{T = Time}$

$\textsf{D = Distance}$

$\textsf{S = Speed}$

$\large\tt\color{purple}\underline{\underline{Concept:}}$

Dividing distance by speed , we will got the time taken by the sound .

$\large\tt\color{green}\underline{\underline{Solution:}}$

Equation 1:

$\textsf{Time taken by the sound to travel in air}$

$T=\frac{D}{S}$

$T=\frac{1700m}{340m-1}$

$\therefore\color{purple}\boxed{Time\:taken=5\:s}$

................................................................

Equation 2:

$\textsf{Time taken by the sound to travel in water}$

$T=\frac{D}{S}$

$T=\frac{1700m}{1360m-1}$

$\therefore\color{purple}\boxed{Time\:taken=1.25\:s}$

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▪︎So , 5s the time taken by the sound to travel in the air .

▪︎And 1.25s time taken by the sound to travel in the water .

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