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Sagot :
Work done by the friction force is 110.77 J
Calculation of friction force:
here box has mass, m=5.9 kg
It slides the distance of, d=9.3 m
coefficient of kinetic friction is 0.206
Now we can say that,
net force on the object is applied force and friction force
The net force according to Newton's second law:
F(net)=m*a
F(applied) - f(friction) = m*a
The work done by friction force will be
W= -k*mg*d
here g is gravitational acceleration.
substituting the values we get,
W=-(0.206)*(5.3)(9.8)*(9.3)
W= -110.77 J
negative sign denotes the opposite direction.
work done by the friction force is 110.77 J
Learn more about friction force here:
https://brainly.com/question/11507038
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