Question

How long would it take for a sound impulse to travel through an aluminum rod 1,500 meters long?

0.45 sec
4.5 sec
3.4 sec
0.29 sec

Answer 1

As per Provided Information

Distance travelled by sound impulse through an aluminium rod is 1500 metres .

We have been asked to determine the time taken by the sound impulse to travel through aluminium rod .

As we know

Speed of sound in aluminium rod is 5100m/s .

Using Formulae

`\boxed{\bf \: Time \: taken_((Sound \: impulse)) = \cfrac{distance \: travelled \: by \: sound \: impulse}{speed \: of \: sound \: impluse}}`

Substituting the value and we obtain

`\sf \qquad \longrightarrow \: Time \: taken_((Sound \: impulse)) = (1500)/(5100) \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_((Sound \: impulse)) = \cancel(1500)/(5100) \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_((Sound \: impulse)) = 0.29 \: s`

Therefore ,

• 0.29 second sound impulse takes to travelled.

So, your answer is 0.29 s .