Respuesta :

chi3fcomm5nd
by Newton second law F=ma
it is impossible to have the net force opposite of the accelration so It is either F=-30 and a=-6
or F=30 and a=6
solving for m
[tex]m = \frac{f}{a} [/tex]
substituting
[tex]m = \frac{ 30}{6} = 5[/tex]

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