Resposta:
c) 90 m/s
Explicação:
F = 80 N
m = 8,0 kg
t = 9,0 s
Vo = 0 m/s
Fr = m.a
80 = 8,0 . a
a = 80/8,0
a = 10 m/s² (aceleração do corpo)
V = Vo + a.t
V = 0 + 10 . 9,0
V = 90 m/s
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Resposta:
c) 90 m/s
Explicação:
F = 80 N
m = 8,0 kg
t = 9,0 s
Vo = 0 m/s
Fr = m.a
80 = 8,0 . a
a = 80/8,0
a = 10 m/s² (aceleração do corpo)
V = Vo + a.t
V = 0 + 10 . 9,0
V = 90 m/s