Asked by John
a wrench is dropped by a worker at a construction site. four seconds later the worker hears it hit the ground below. How high is the worker above the ground? (The velocity of sound is 1100 ft/s, and the distance the wrench falls as a function of time is s=6t^2
Answers
Answered by
Steve
so, you have (assuming the real world)
d = 16t^2, so t = √(d/16)
That's how long it takes to fall a distance d.
The sound takes another d/1100 seconds to get back. Thus, you have
√d/4 + d/1100 = 4
That's just a quadratic equation, so finding √d is easy
d = 16t^2, so t = √(d/16)
That's how long it takes to fall a distance d.
The sound takes another d/1100 seconds to get back. Thus, you have
√d/4 + d/1100 = 4
That's just a quadratic equation, so finding √d is easy
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.