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

I need to solve the absolute value for |2x - 7| = |2x + 9| please anything will help thank you!!!
which of the following is true? 3 ^-1 ___ 1/4
As Peter watched Sue walk down the runway at the fashion show, he contracted his right orbicularis oculi muscle, raised his arm, and contracted his opponens pol
5c squared- d squared+3/2c - 4d...c= -1. d= -4​
Accused persons have the right to
What is the final goal of Buddhists in their practice of the religion?
Every coach must know his sport well. Marty Wright is a baseball coach, so Marty Wright knows baseball well. A. Inductive B. Deductive
the plasma membrane is composed of a ____ bilayer where two layers of ____ are arranged so that their ____ touch the cytoplasm and the external cell environment
write a proportion to find the distance from campsite 3 to the water​
Since climate is hard to study on a global scale scientists use computers models to make climate predictions ture or false