Answered

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A 150kg motorcycle starts from rest and accelerates at a constant rate along with a distance of 350m. The applied force is 250N and the coefficient of kinetic friction is 0.03. What is the net force applied to the motorcycle?

Sagot :

stigawithfun

Answer:

205N

Explanation:

The net force (F) is the difference between the applied force([tex]F_{A}[/tex]) and the kinetic frictional force([tex]F_{R}[/tex]). i.e

F = [tex]F_{A}[/tex] - [tex]F_{R}[/tex]    -----------------(i)

Note that;

[tex]F_{R}[/tex] = μmg

Where;

μ = coefficient of kinetic friction

m = mass of the body

g = acceleration due to gravity = 10m/s²

Equation (i) then becomes;

F = [tex]F_{A}[/tex] - μmg        -------------------(ii)

Given from question;

m = mass of motorcycle = 150kg

μ = 0.03

[tex]F_{A}[/tex] = 250N

Substitute these values into equation (ii) as follows;

F = 250 - (0.03 x 150 x 10)

F = 250 - (45)

F = 205N

Therefore, the net force applied to the motorcycle is 205N

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