salsaanddoritos13981 salsaanddoritos13981

12-05-2022
Physics

contestada

A 100 kg object moving at 20 m/s comes to a stop over a distance of 40 m. what is the coefficient of kinetic friction between the object and the ground? (show work please)

Respuesta :

jsimpson11000 jsimpson11000

12-05-2022

Answer:

.5097

Explanation:

Original KE = 1/2 (100)(20)^2 = 20 000 J

the force of friction must work this hard to stop the object in 40 m

Ff *40 = 20 000

Ff = 500 = Fn u u = coeff of kinetic friction

500 = (100)(9.81) u

u = .5097

Answer Link

Otras preguntas

Need help with this on which property would it be

Reichstage definition

How many solutions does this system of equations have? Use either the substitution method or the elimination method. x − 5y = 10 3x − 15y = 15

I need to balance an equation

The european colonial power that still maintains close economic ties to its former colonies in africa because of its currency is:

Western Front fighting in World War I took place primarily in which of the following? Question 1 options: Austria-Hungary and France France and Germany

Explain, using complete sentences, why you might want to open only a checking account and not a savings account.

The use of exaggerated language in writing is

An example of irony in "Mending Wall" in when the speaker of the poem? 1. tells the boulders not to fall again until their backs are turned. 2.helps fix the wa

One thousand grams of seawater would consist of how many grams of dissolved substances? 65 635 35 965