Knowing the mass of the block A and B are valid, respectively. 40.0 kg and 20.0 kg. we can see that the acceleration of the system and the pull of the rope are worth, respectively:

Note: Consider pulleys and wires as ideal. If necessary, use g = 9.8m/s2

Question

Knowing the mass of the block A and B are valid, respectively. 40.0 kg and 20.0 kg. we can see that the acceleration of the system and the pull of the rope are worth, respectively: 

Note: Consider pulleys and wires as ideal. If necessary, use g = 9.8m/s2

vincent-lyon.fr · Answer

Without a picture, we cannot guess where the pulleys are, if the masses move horizontally or vertically.
Please post a figure.

anonymous · Answer

attachment

anonymous · Answer

@Vincent-Lyon.Fr

vincent-lyon.fr · Answer

Fábio, we've already helped you solve that same problem with different values twice.
What is it that you cannot do by yourself?

Please post your equations and we can see what is wrong.