Newton's Second Law surface+horizontal w/ friction

AI Thread Summary
The discussion focuses on solving problems related to Newton's Second Law involving forces on two masses, M1 and M2, with friction on a horizontal surface. The user has already calculated the normal force (N1) acting on M2 as 99.1 N and is working on determining the net force acting on the system, which they estimate to be 12 N. They also attempted to express the tensions (T1 and T2) in the string affecting both masses but indicated that they believe their calculations for these tensions are currently zero. The user plans to revisit their answers and clarify any remaining questions in the morning. Overall, the thread highlights the user's process of problem-solving in physics, particularly regarding forces and tensions in a system.
Fredecus
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This was a return of my test and I have filled in the forces already. I got a few problems wrong and I would like to see what the correct answers are.

Homework Statement



1. Write an expression and determine the value of N1, the normal force acting on M2

2. Write an expression for and determine the value of the net force acting on the system.

3. Write an expression for and determine the value of the force (Tension[T2]) the string exerts on M1

4. Write an expression for and determine the value of the force (Tension[T2]) the string exerts on M2

Homework Equations



N/A

The Attempt at a Solution



1. N1=Mg-sin(α)=99.1

2. -30.18-.9-43.08=12N

3. T1=-Fcos(α)+Fs-sumFx1
T1=0

4. T2=sumFx2-mgsin(θ)+Fs2
T2=0
 
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I think I have figured it out but I am too tired at the moment to post it. I will post in the morning my new answers and the questions I still have (if any).
 
1. N1=Mg-sin(α)=99.1
---------
Sin[α] is a ratio of 2 lenght. Force unit is in Newtons.
 
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