Respuesta :

ren963
Newton's second law of motion states F=ma >> a = F/m

F = 20 N

(a) m = 5 kg
a = F/m = 20/5 = 4 m/s^2

(b) m = 40 kg
a = 20/40 = 0.5 m/s^2

(c) m = 100 kg
a = 20/100 = 0.2 m/s^2

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