- #1
goodOrBad
- 25
- 2
- Homework Statement
- Given the weight of block A, friction coefficients and an angle determine the max.weight of B for which the system will stay in balanc
- Relevant Equations
- fg=µ1N
T2=T1e^(µ2β)
Did you draw a diagram of the circle with radii to the ends of where the string arcs over it?goodOrBad said:So it should be -90? I don really understand how I have to determine the angle
If the upper section of the string were horizontal it would be 90 degrees. But it isn't.goodOrBad said:View attachment 269851
no, but it does seem like the rope arcs over a 90 degree area
That looks like a big step backwards.goodOrBad said:cos30T1=0.3*500
300? Where did that come from? Or did you mean 30o?goodOrBad said:e^(0.2*300* π/180)
Yes.goodOrBad said:then beta should be 60 right?View attachment 269878
Looks good.goodOrBad said:Great then this should be correct
View attachment 269879
To find the minimum A for equilibrium? Sure - why should the equations change?goodOrBad said:View attachment 269881
Thank you now I have one more question, what if almost everything was the same but... I was given weight of B and needed to find A, would I be able to use T2=T1e^(µ2β)
A two block problem refers to a physics problem that involves two blocks connected by a string or rope. The blocks may be on an incline or a horizontal surface, and the problem typically involves calculating the forces and accelerations acting on the blocks.
To solve a two block problem, you will need to use Newton's laws of motion and apply them to each block separately. You will also need to consider any external forces acting on the blocks, such as friction or tension in the string. It may also be helpful to draw a free body diagram for each block to visualize the forces acting on them.
Some common mistakes when solving a two block problem include forgetting to consider all the forces acting on the blocks, using incorrect values for mass or acceleration, and not properly accounting for the direction of forces. It is important to carefully read and understand the problem before attempting to solve it.
Yes, there are several equations that can be used to solve a two block problem, such as Newton's second law (F=ma), the equations for friction, and the equations for tension in a string. However, it is important to only use equations that are applicable to the specific problem at hand.
One tip for solving a two block problem more efficiently is to break the problem down into smaller parts and solve each part separately. This can help to simplify the problem and make it more manageable. It is also helpful to double-check your calculations and make sure all units are consistent throughout the problem.