Get 2 FREE Instant-Explanations on Filo with code FILOAPP

Home

Class 11

Physics

System of Particles and Rotational Motion

Torque

If the earth suddenly changes its radius x times the present v

Question

Easy

Solving time: 2 mins

If the earth suddenly changes its radius $x$ times the present value, the new period of rotation would be

Name: Video solution 1: If the earth suddenly changes its radius x times the present value, the new period of rotation would be
Uploaded: 2022-07-25T17:37:12.000Z
Duration: 6 min
Description: Video solution 1: If the earth suddenly changes its radius x times the present value, the new period of rotation would be

6 x^{2} h

12 x^{2} h

24 x^{2} h

48 x^{2} h

Views: 6,330 students

Updated on: Jul 25, 2022

Book:

Master Resource Book in JEE Main Physics (Arihant)

Found 2 tutors discussing this question

Asher Discussed

If the earth suddenly changes its radius

x

times the present value, the new period of rotation would be

9 mins ago

Discuss this question LIVE

9 mins ago

Text solutionVerified

As no torque is applied, angular momentum

L = I ω =

constant

= (\frac{2}{5} M R^{2}) (\frac{2 π}{T}) =

constant

i

.e.

\Rightarrow \frac{R ^{2}}{T} =

constant

\Rightarrow \frac{R _{1}^{2}}{T _{1}} = \frac{R _{2}^{2}}{T _{2}}

∴ T_{2} = \frac{R _{2}^{2}}{T _{2}} T_{1} = (\frac{x R _{1}}{R _{1}})^{2} \times 24 h = 24 x^{2} h

Was this solution helpful?

Report

Filo tutor solutions (2)

Learn from their 1-to-1 discussion with Filo tutors.

6 mins

Uploaded on: 7/25/2022

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Rohit Kumar

Total classes on Filo by this tutor - 7,463

Teaches : Physics, English

Connect instantly with this tutor

Connect now

Notes from this class (3 pages)

Download

Was this solution helpful?

Report

3 mins

Uploaded on: 7/25/2022

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Vatsla Singh

Total classes on Filo by this tutor - 1,835

Teaches : Physics, Biology, Organic Chemistry

Connect instantly with this tutor

Connect now

Was this solution helpful?

Report

One destination for complete JEE/NEET preparation

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Stuck on the question or explanation?

Connect with our Physics tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Question Text	If the earth suddenly changes its radius $x$ times the present value, the new period of rotation would be
Updated On	Jul 25, 2022
Topic	System of Particles and Rotational Motion
Subject	Physics
Class	Class 11
Answer Type	Text solution:1 Video solution: 2
Upvotes	230
Avg. Video Duration	4 min

If the earth suddenly changes its radius $x$ times the present value, the new period of rotation would be

Text solutionVerified

Filo tutor solutions (2)

Practice questions from Master Resource Book in JEE Main Physics (Arihant)

Practice more questions from System of Particles and Rotational Motion

Practice questions on similar concepts asked by Filo students

If the earth suddenly changes its radius x times the present value, the new period of rotation would be

Text solutionVerified

Filo tutor solutions (2)

Practice questions from Master Resource Book in JEE Main Physics (Arihant)

Practice more questions from System of Particles and Rotational Motion

Practice questions on similar concepts asked by Filo students

Related books for questions on System of Particles and Rotational Motion

If the earth suddenly changes its radius $x$ times the present value, the new period of rotation would be