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dexar [7]
3 years ago
6

A 20.0-kg block is initially at rest on a horizontal surface. A horizontal force of 77.0 N is required to set the block in motio

n, after which a horizontal force of 56.0 N is required to keep the block moving with constant speed.Find the coefficients of static and kinetic friction from this information.

Physics
1 answer:
saveliy_v [14]3 years ago
6 0

Answer: The coefficient of static friction is 3.85 and  The coefficient of kinetic friction is 2.8

Explanation:

in the attachment

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Explanation:

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x_o=\dfrac{86.10^2}{2\times 25.4}=145.92\ m  

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u^2=2g(x-x_o)

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3 years ago
What is the name for the bunched up region of<br> air particles in the sound wave?
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Answer D
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Light with wavelength in air ( lambdaair ) is incident on a oil slick ( noil = 1. 25) floating on the ocean ( nwater = 1. 33). w
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