Respostas

2014-07-14T13:34:32-03:00
Com:

F1 = 13 N

F = m.a
13 = 8.a
a = 13/8

a = 1,625 m/s²

F2 = 22 N

F = m.a
22 = 8.a
a = 22/8

a = 2,75 m/s²

F3 = 45 N

F = m.a
45 = 8.a
a = 45/8

a = 5,625 m/s²