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A box slides down a ramp inclined at 24◦ to the horizontal with an acceleration of 1.7 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . Determine the coefficient of kinetic friction between the box and the ramp.

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abidemiokin

Answer:

0.445

Explanation:

In friction, the coefficient of friction formula is expressed as;

[tex]\mu = \frac{F_f}{R}[/tex]

Ff is the frictional force = Wsinθ

R is the reaction = Wcosθ

Substitute inti the equation;

[tex]\mu = \frac{Wsin \theta}{W cos\theta} \\\mu = \frac{sin \theta}{cos\theta} \\\mu = tan \theta[/tex]

Given

θ = 24°

[tex]\mu = tan 24^0\\\mu = 0.445\\[/tex]

Hence the coefficient of kinetic friction between the box and the ramp is 0.445

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