Are Identical Masses' Angles Equal for Different Charges?

  • Thread starter Thread starter anban
  • Start date Start date
  • Tags Tags
    Angles Charges
AI Thread Summary
In the scenario of two charges with identical masses hanging from the same point, one charge is q and the other is 2q. The discussion revolves around whether both masses will make the same angle with the vertical. The conclusion reached is that, despite the difference in charge, the angles will indeed be equal due to the balancing of forces as per Newton's Third Law. The assumption is made that the masses are large and the charges are small, which supports this conclusion. Therefore, the angles are equal for both masses when the masses are identical, regardless of their charges.
anban
Messages
20
Reaction score
0

Homework Statement



I have a problem as follows: "Two charges of identical mass hang from the same point by a thread of length l. One has charge q and the other has charge 2q. Find the angle each mass makes with the vertical."

Now, I got an answer and found that each mass will make the same angle with respect to the vertical. Is this true? When I imagine this scenario in my head it seems like their angles would be different. Are the angles equal for both masses when the masses are equal, regardless of the charges?


Homework Equations





The Attempt at a Solution



There is an assumption that the masses are "large" and the charges are "small".
 
Physics news on Phys.org


Ponder Newton's Third Law.
 


Got it- equal and opposite forces. Thank you.
 

Thread 'Errors and significant figures'

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...
View full post »
Thread 'A cylinder connected to a hanging mass'

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...
View full post »

Similar threads

Balance of forces for two charged spheres hanging from the ceiling
Replies
18
Views
2K
Oscillation of system of three charges
Replies
8
Views
832
Angle between 2 charged spheres hanging from string
Replies
19
Views
7K
How Do You Calculate the Electric Charge on a Suspended Cork Ball?
Replies
2
Views
2K
E&M Problem - 2 Charged Masses Hanging on Strings
Replies
4
Views
6K
For a Pendulum: Knowing Acceleration Find Maximum Angle
Replies
26
Views
3K
What is q and what is the charge (negative or positive)?
Replies
1
Views
3K
Finding Angle of String with Two Charged Balls
Replies
1
Views
2K
How to Apply Derivatives in Physics Problems?
Replies
9
Views
1K
Coefficient of Restitution for a Hypothetical Collision where masses are not equal after the collision compared to before the collision
Replies
6
Views
1K

Hot Threads

Recent Insights

Back
Top