This discussion board is a place to discuss our Daily Challenges and the math and science
related to those challenges. Explanations are more than just a solution — they should
explain the steps and thinking strategies that you used to obtain the solution. Comments
should further the discussion of math and science.
When posting on Brilliant:
Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.
Markdown
Appears as
*italics* or _italics_
italics
**bold** or __bold__
bold
- bulleted - list
bulleted
list
1. numbered 2. list
numbered
list
Note: you must add a full line of space before and after lists for them to show up correctly
# I indented these lines
# 4 spaces, and now they show
# up as a code block.
print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.
print "hello world"
Math
Appears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3
2×3
2^{34}
234
a_{i-1}
ai−1
\frac{2}{3}
32
\sqrt{2}
2
\sum_{i=1}^3
∑i=13
\sin \theta
sinθ
\boxed{123}
123
Comments
I would not be able to write the whole solution, because I am NOT GOOD IN lateX, and without that u would not be able to get the solution, but I can give u the basic trick required to crack it. Now, we know that the weight of ball is perpendicular to the earth and makes some angle with the thread(could be found using trigonometric ratios), so now take the components of the weight :- 1) along the thread and 2) perpendicular to the thread. Now whatever the component along the thread is, it would ultimately be balanced by the tension in the thread, and the horizontal component (component perpendicular to the thread) would be balanced by the electrostatic force of attraction. Now plug in the values and you will get the answer.
Easy Math Editor
This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.
When posting on Brilliant:
*italics*or_italics_**bold**or__bold__paragraph 1
paragraph 2
[example link](https://brilliant.org)> This is a quote# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"\(...\)or\[...\]to ensure proper formatting.2 \times 32^{34}a_{i-1}\frac{2}{3}\sqrt{2}\sum_{i=1}^3\sin \theta\boxed{123}Comments
I would not be able to write the whole solution, because I am NOT GOOD IN lateX, and without that u would not be able to get the solution, but I can give u the basic trick required to crack it. Now, we know that the weight of ball is perpendicular to the earth and makes some angle with the thread(could be found using trigonometric ratios), so now take the components of the weight :- 1) along the thread and 2) perpendicular to the thread. Now whatever the component along the thread is, it would ultimately be balanced by the tension in the thread, and the horizontal component (component perpendicular to the thread) would be balanced by the electrostatic force of attraction. Now plug in the values and you will get the answer.
Log in to reply
Can you elaborate it a little more further.Can you give the final equation.