Expert Mechanics Help: Solving Moment of Force Problems | 6 Unsolved Issues

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The discussion focuses on solving six unsolved moment of force problems, with the user having already solved four. Some problems have correct answers provided, indicating that others may be seeking clarification or verification. The user emphasizes that this is not homework but rather a review for an upcoming exam. Participants are encouraged to contribute solutions or insights to the remaining problems. The thread highlights the collaborative effort to understand moment of force concepts better.
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this is about moment of a force ...
acctually this is 10 problems i already solve the 4
but i can't solve this 6 problem

some of the problems already have a correct answer...

thanks a bunch...
 

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This is not my homework i just want to see what is the solution of the ff problems
because I am reviewing for my exam next week ... thanks for all the help ^^
 
this are the answers LOL ...
 

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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...
Thread 'A cylinder connected to a hanging mass'
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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