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3 years ago

The speed of sound (shockwave) in an explosion is 100mph. How many seconds does the shockwave reach 2km away?

Mathematics

1 answer:

Mice21 [21]3 years ago

4 0

Answer:

t = 44.73 s

Step-by-step explanation:

Given that,

The speed of a sound wave, v = 100 mph = 44.704 m/s

We need to find the time taken by the shockwave to reach 2 km i.e. 2000 m

We know that,

Speed = distance/time

So,

$t=\dfrac{d}{v}\\\\t=\dfrac{2000}{44.704}\\\\t=44.73\ s$

So, it will take 44.73 seconds to reach 2 km.

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3 years ago

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$AM=AP+PM=AP+(AP+1)\\\\\Rightarrow 2AP=AM-1\\\\\Rightarrow 2AP=5x-1.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(A)$

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$CP^2=AC^2-AP^2=CM^2-MP^2\\\\\Rightarrow (3x)^2-AP^2=(4x)^2-(AP+1)^2\\\\\Rightarrow 9x^2-AP^2=16x^2-AP^2-2AP-1\\\\\Rightarrow 2AP=7x^2-1.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(B)$

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4 years ago

The speed of sound (shockwave) in an explosion is 100mph. How many seconds does the shockwave reach 2km away?​

The speed of sound (shockwave) in an explosion is 100mph. How many seconds does the shockwave reach 2km away?