Respuesta:
Explicación:
Datos:
m = 20 kg
F = 40 N
μ = 0.1
fr =?
∑fy=0
N - w =0
N = w
N = mg
fr = μ mg
fr = 0.1 x 20 kg x 9.8 m/s²
fr = 19.6 N
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Respuesta:
Explicación:
Datos:
m = 20 kg
F = 40 N
μ = 0.1
fr =?
∑fy=0
N - w =0
N = w
N = mg
fr = μ mg
fr = 0.1 x 20 kg x 9.8 m/s²
fr = 19.6 N