Help With Physics Problems

[ThermiteMan]

Number 1-

 

 

 

Here is the link for the bigger picture - http://i12.photobucket.com/albums/a203/soltaritroop/physics1.jpg

Three Masses Connected to Pulleys.

 

a) Free Body Diagrams for Each one

b) Resolve the forces on each block into its Perpendicular Components

c) What is the coefficient for Friction if the blocks have a constant velocity

d) If the rope connected to M1 snaps, quantify the resulting motion of the two remaining blocks using the results fom ©.

 

Im drawing a blank and i cant believe i dont remember how to do these

 

 

2)

 

 

Link: http://i12.photobucket.com/albums/a203/soltaritroop/Physics2.jpg

 

 

Q1- - 5.6 Micro Coulombs

Q2- + 5 Micro Coulombs

Q3- + 3.2 Micro Coulombs

Q4- - 8.1 Micro Coulombs

 

Distance between Q1 and Q2 - .20 meters

Q1 and Q3 - .15 meters

Q3 and Q4- .20 meters

Q2 and Q4- .15 meters

 

Find the Direction of the Forces as well as the Net force.

 

Any help would be appreciated

[swansont]

You don't remember how to draw a FBD? Identify all the forces on each item.

[ThermiteMan]

I can do the FBD's, i just need help with the rest because im just drawing blanks. I would really appreciate it

[Klaynos]

Well working out the forces parallel to their motion due to gravity would be a good place to start...