Register to reply 
Analyzing Tension Forces with friction 
Share this thread: 
#1
Dec108, 06:53 PM

P: 14

1. The problem statement, all variables and given/known data
A 9.00kg hanging object is connected, by a light, inextensible cord over a light, frictionless pulley, to a 5.00kg block that is sliding on a flat table. Taking the coefficient of kinetic friction as .200, find the tension in the string 2. Relevant equations F = ma 3. The attempt at a solution Fk = ma a = (9.8 N friction force)/(5.00 kg) = 1.96 which is approximately 2 ΣFx= T  Fk = ma T = Fk + ma T = (9.8N) + total mass 14N(1.96 m/s^2) T = 37.24 or if you use 2 for the acceleration you get 37.8 which is the right answer Did I do this right? Please help me to understand why. 


#2
Dec108, 07:33 PM

Sci Advisor
HW Helper
PF Gold
P: 6,038




Register to reply 
Related Discussions  
Help with question on forces with motion, tension, friction...  Introductory Physics Homework  3  
Capillary forces, intermolecular forces and surface tension questions  Classical Physics  2  
Direction of forces (centripetal/friction/tension)  Introductory Physics Homework  1  
Determine acceleration and tensions in this diagram  Introductory Physics Homework  4  
Analyzing the Forces & direction of friction  Introductory Physics Homework  1 