What is the tension force in each block on an incline?

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SUMMARY

The discussion focuses on calculating the tension force in two blocks on an incline, emphasizing that one cannot assume a fixed tension value, such as 1500N, for block B. Instead, the tension should be represented as "T" in the equations. The blocks, connected by a rope, share the same acceleration, which is derived from applying Newton's 2nd law to each block separately, resulting in two equations with two unknowns. The forces acting on block A include tension and friction, both directed up the incline.

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The Attempt at a Solution


I can write out all the sums in the X and Y direction but don't know what to put for the tension force of each block...i can't assume 1500N for tension in block B correct? because its on an incline and all that. and then how do i do the acceleration of the system? wouldn't i have 2 separate accelerations for each block?
 
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sash187 said:
I can write out all the sums in the X and Y direction but don't know what to put for the tension force of each block...i can't assume 1500N for tension in block B correct? because its on an incline and all that.
You cannot assume any value for the tension. Just call it "T" and include it in your analysis.
and then how do i do the acceleration of the system? wouldn't i have 2 separate accelerations for each block?
The blocks are connected by a rope, so they have the same acceleration.

Applying Newton's 2nd law to each mass separately, you'll end up with two equations and two unknowns. Just right.
 
ahhh then use substitution correct?

for the A block the tension force would be going North East correct? and same with the MA force and (coeff. of friction*N) force since its sliding down?
 
sash187 said:
ahhh then use substitution correct?
That would work.
for the A block the tension force would be going North East correct? and same with the MA force and (coeff. of friction*N) force since its sliding down?
Both the tension and the friction force on block A act up along the incline (North East, if you like). I don't know what you mean by the 'MA force'. The acceleration is down the incline.
 
mass * acceleration force.
 
sash187 said:
mass * acceleration force.
That's not a force, that's mass*acceleration. If you were to list the forces acting on either block, you would not include 'mass*acceleration'. That term appears when you apply Newton's 2nd law.
 

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