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Problem: A bullet shot from a rifle travels at 1000 m/s. What is the elapsed time between when the bullet strikes a target 500 m away, and when the sound of the gunshot reaches the target? Assume air temperature is 20 °C.

FREE Expert Solution

The time that the bullet takes to strike the target:

tb=distancespeed

The speed of sound in air:

vs=(331.4+0.6Tc)m/s, where TC is the temperature of the air.

Time elapsed is:

telapsed=ts-tb, where ts is the time taken by sound. 

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Problem Details

A bullet shot from a rifle travels at 1000 m/s. What is the elapsed time between when the bullet strikes a target 500 m away, and when the sound of the gunshot reaches the target? Assume air temperature is 20 °C.

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