2007-05-21 16:06:36 · 6 answers · asked by neena m 1 in Science & Mathematics ➔ Physics
if i have my ear to the rail , they are 2895 meters
away.
if not , they are 172 meters away.
do your own homework.
2007-05-21 16:21:59 · answer #1 · answered by misterchickie 3 · 0⤊ 0⤋
I assume you mean that there is a 0.5 second delay from when you see the hammer hit the rail to when you hear the blow. Since the speed of sound is about 340 meters per second, the distance the sound traveled is about 170 meters.
2007-05-21 16:23:38 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Wait a minute: if the crewman with the hammer is out of shape and the hammer is heavy, it may take him several seconds to get the hammer in the air over his head and onto the spike. If the guy is in Rocky shape, he could get the hammer over his head onto the spike in a fraction of the time, comparatively speaking. How do we know when he started the swing, since you are basing your question not on when the hammer strikes the spike, but when it is swung. . . . . hmmmm
2007-05-21 16:17:38 · answer #3 · answered by cgminime 4 · 0⤊ 0⤋
Having a difficult time with the homework?
Distance is velocity times time. If you have the speed of sound (which you should have looked up already) in meters/sec then mmultiply it times seconds and you'll have your answer.
HTH
Doug
2007-05-21 16:21:46 · answer #4 · answered by doug_donaghue 7 · 0⤊ 0⤋
Sound travels 1100 ft/s.
0.5*1100 = 550 ft.
2007-05-21 16:21:38 · answer #5 · answered by Helmut 7 · 0⤊ 1⤋
That's a good question!
2016-08-14 21:36:57 · answer #6 · answered by Anonymous · 0⤊ 0⤋