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

The use of rules, regulations, and authority to guide performance is referred to as
A body is found in the park and there is no sign of rigor mortis. how long has the personbeen dead?
Any book suggestion with the theme of loving your siblings or anything about siblings? -List as many -middle school level (900 lexile level or above)
How many degrees does each angle of an equilateral triangle measure?
The equation for determining an object is d=s * t, where d is distance, s is speed, and t is time. How much time does it take an object to travel if it travels
Which measure of central tendency is least representative of the data set shown? 2, 2, 3, 4, 5, 32
Ernie has 4 yellow straw
Which of the following does economic geography study?
What are violent storms that produce high winds and heavy rains?
Which organization is responsible for regulating contributions to political campaigns