Solving Forces and Acceleration for a System of Masses

[Faiza]

In this problem (open the attachment to see the picture):

*We assume F_1 is less than F_2
*We assume that friction is negligible
*We assume that the rope has a mass m_r not equal to zero

Q1.What is the acceleration? Choose a coordinate system and include the
direction of the acceleration in your answer.

Q2.What is the force exerted on mass 1 by the rope, T_1?
Q3.What is the force exerted on mass 2 by the rope, T_2?
Q4.Are your asnwers to 2 and 3 equal in magnitude? Why?
Q5.Now assume that M_1=12 kg
M_2=5 kg
F_1=5 N
F_2=15 N
M_r= 2 kg
Repeat your answers to parts 1, 2 and 3 using these values.

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I'm going to post up my wrong asnwer someone please check it after

 

[Faiza]

any one?/

 

[Gokul43201]

Please post what you've done, and we'll check it for you.

 

[Gokul43201]

Do you get 0.526 m/s^2, 12.37 N and 11.32 N ?

 

[Faiza]

would the acceleration be a= F / m1 + m2

 

[Faiza]

F12(the force exerted on by m1 on m2) = (m2/m1+m2) *F

 

[Faiza]

can someone please help me figure this out ?

 

[Faiza]

i realll need hellp omg this is so hard for me

 

[Faiza]

help i still didnt get the same answer

 

[Faiza]

i really need help now