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

why is it a good idea to have one person in charge of office operations?
In an attempt to increase sales during a lagging economy, macy's has increased its advertising and sales promotions for its current products to stimulate sales
Sam goes to the market to buy hamburger for a cookout. He buys 3 3/4 pounds of hamburger. How many 1/4 pound patties can he make?
HELP ME I'LL FAN U N GIVE YOU A MEDAL!!!
Is the perimeter of a square and its side length linear or not linear?
Which of the following cannotbe considered a single phase? a heterogeneous mixture a pure solid a homogeneous mixture a pure liquid
4. How did nationalism affect Europe after the Congress of Vienna and 1815?
Shakira makes a rectangular tablecloth that is 3.5 meters long and 1.5 meters long what is the area of the tablecloth?Operation:How do you know:write the equati
Who did not lead voyages of exploration? Prince Henry da Gama Dias Cabot
The answer to this problem is 74 I just want to know how to get that number