How Do You Solve Tension Problems with Friction and Acceleration?

  • #1
max1995
84
11

Homework Statement


See image attached

Homework Equations

The Attempt at a Solution


bii) Tc=mc(a+g)

Need help on Ci what I did is

(9x9.81) -uR-6g=10a

Have no idea what to do though really
 

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  • #2
bii) Tc=mc(a+g)
... this does not follow from b(i). Please show your reasoning.
Have no idea what to do though really...
... did you read the hint?
But you should complete b before starting c.
 
  • #3
Simon Bridge said:
... this does not follow from b(i). Please show your reasoning.
... did you read the hint?
But you should complete b before starting c.

for bii i just assumed the expressions would be the same, how would i go about getting an expression for Tc?
 
  • #4
The b(i) equation defines a sign convention ... you should work out the derivation they did using a free body diagram.
Then for b(ii), you want to do the same derivation, but you have to make sure the sign convention is consistent with the first one.
 

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