tfeemstertyreese1616 tfeemstertyreese1616
  • 03-11-2016
  • Physics
contestada

A child throws a penny straight down into a wishing well. The penny's initial speed is 2 m/s. If the penny takes 3 seconds to hit the water, how deep is the well?

Respuesta :

antek
antek antek
  • 03-11-2016
[tex]L = v_0\cdot t + \frac{1}{2}gt^2[/tex]

In this case v_0 = 2 m/s and t=2
Putting everything in will be

[tex]L = 2\cdot 3 + \frac{1}{2}\cdot9.82\cdot 2^2 = 6 + 19.64 = 26[/tex]

So the answer is 26 m.
Answer Link

Otras preguntas

a jumbo playing card has an area of 64 square inches and a perimeter of 32 inches.what are the dimensions of the playing card
What is one specific form of simple diffusion??
Long summary of Arrow of Destiny
Elements beyond number ___on the periodic table are radioactive
How could you increase the potential energy of an apple you were holding?
I have a homework assignment that's due tomorrow in honors algebra. I need help, I'm kind of stuck. Here's the question: There are 50 questions to answer in a t
what controversial issue did the great compromise solve
In any difference 6th grade class the ratio of boys and two girls is 3:2 how many boys and how many girls could there be in one class is there more than one pos
The range of all real numbers x such that 2x − 5 < 7 and 4x + 10 > 6 is a. (-1,6) b. (-infinity, infinity) c. an empty set d. (6,-1) There's two answ
What is the meter from the poem prospects of the future glory of America by John Trumbull?