If bar A moves right at a speed of x,how does bar B move?

  • Thread starter Thread starter zizodev
  • Start date Start date
  • Tags Tags
    Speed
AI Thread Summary
When bar A moves to the right at speed x, bar B also moves to the right but at a slower speed, specifically x/2. The motion of bar A causes the connected gears to rotate in alternating directions, affecting the speed of bar B. The gears' teeth count is essential for calculating the exact speed relationship between the bars. The discussion emphasizes the importance of counting the number of teeth on the gears to determine the speed ratio accurately. Overall, the mechanics of gear interaction dictate the movement and speed of bar B relative to bar A.
zizodev
Messages
22
Reaction score
0
Hi..

Homework Statement



http://data.imagup.com/12/1146557882.jpg
If bar A moves right at a speed of x,how does bar B move?

Homework Equations



speed of the gear(A) * number of teeth(A) =speed of the gear(B) * number of teeth(B)

The Attempt at a Solution


as A slide to the right, so the C gear will turn Clockwise (CW);the D Anti CW ,E CW;
F anti CW so B will slide to the right.
about the spped the B will slide slower than rank A :)
thnks in advance.
 
Physics news on Phys.org
hi zizodev! :wink:

yes, that's fine :smile:

quicker wold be to count the number of gears …

the are 4 circular gears, and 4 is even, so the first must go the opposite way to the fourth

(and yes, B will slide to the right, slower than A … you still need to count teeth to find how much slower! :wink:)
 
yes tiny-tim that's right...and the value is X/2 since the speed of the A=X.:)
 
yup! :smile:
 
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...
Back
Top