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 :

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

In what way did feudalism in Japan and medieval Europe differ? Apex World History Sem 1 Unit 4

(7x^3-6+5x^2)+(6x^4-2-6x^3)+(4x^2+3x^4+8x)

The temperature inside your mother’s deep freezer is set for –2°F. The manufacturer guarantees the actual temperature will fall within 4°F of the temperature t

What does “pleasing as none shall ever please again.” Mean? A. She adds pleasure and goodness to his life. B. She is more beautiful than anyone else he could e

9.167 divided by 8.9 (show work please)

Write an equation of each line in standard form with integer coefficients. 4. y = 2.4x + 1.8

Shawn and Ellie are construction workers. Shawn can complete a concrete job in 5 hours, while Ellie can complete it in 7 hours. The foreman says that it will ta

The table below shows the distance d(t) in meters that an object travels in t seconds: t (seconds) d(t) (meters) 2 64 4 256 6 576 8 1024 What is the avera

HELP PLEASE ASAP I WILL GIVE BRAINLYIST PLZZZZZ ASAP

synonyms found in a thesaurus most likely have