Respuesta :

Answer:

Explanation:

ASSUMING the force and the ground are both horizontal.

ΣF = ma

F - μmg = ma

μmg = F - ma

μ = (F - ma)/mg

μ = (161 - 55(1.7))/(55(9.8))

μ = 0.12523191...

μ = 0.13

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