- #1
greyshrop
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I can't finish the last problems on my homework. I asked my teacher and he wouldn't help me, can someone please help me? I'm so confused!
How to Solve Equilibrium Problems in Homework?
- Thread starter greyshrop
- Start date
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- Equilibrium Forces
AI Thread Summary
To solve equilibrium problems in homework, it's essential to understand that the sum of forces must equal zero when an object is at rest. Begin by analyzing the forces acting on the object and break them down into their x and y components. Set the summation of forces in both the x and y directions to zero to find the unknowns. Following these steps will clarify the problem and help in reaching the solution. Mastering these principles is crucial for successfully completing equilibrium-related assignments.
- #2
- #3
MrMechanic
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Hello greshrop. I suggest you should follow the guidelines here on posting anything related to your homework...
On the pictures you've given it says equilibrium or at rest.. So Summation of Forces will be zero.. Get the summation of Forces Along y and Summation of Forces Along x... sum it to zero.
On the pictures you've given it says equilibrium or at rest.. So Summation of Forces will be zero.. Get the summation of Forces Along y and Summation of Forces Along x... sum it to zero.
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19.
For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question.
Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point?
Lets call the point which connects the string and rod as P.
Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Let's declare that for the cylinder,
mass = M = 10 kg
Radius = R = 4 m
For the wall and the floor,
Friction coeff = ##\mu## = 0.5
For the hanging mass,
mass = m = 11 kg
First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on.
Force on the hanging mass
$$mg - T = ma$$
Force(Cylinder) on y
$$N_f + f_w - Mg = 0$$
Force(Cylinder) on x
$$T + f_f - N_w = Ma$$
There's also...
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