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spin [16.1K]
3 years ago
10

The Force of friction between an object and the surface upon which it is sliding is 12N. The weight of the object is 20N. What i

s the coefficient of kinetic friction?
Use equation Ffr=Uk(mg)
Physics
2 answers:
shtirl [24]3 years ago
7 0

Answer: The coefficient of kinetic friction is μ = 0.6

Explanation:

For an object of mass M, the weight is:

W = M*g

where g is the gravitational acceleration: g = 9.8m/s^2

And the friction force between this object and the surface can be written as:

F = W*μ

where μ is the coefficient of friction (kinetic if the object is moving, and static if the object is not moving, usually the static coefficient is larger)

In this case, the weight is:

W = 20N

And the friction force is:

F = 12N

Replacing these values in the equation for the friction force we get:

12N = 20N*μ

(12N/20N) = μ = 0.6

The coefficient of kinetic friction is μ = 0.6

Gekata [30.6K]3 years ago
5 0
Hope you have a good year!
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