Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Stuck here, help me understand: The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth is :

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth is : 

 

  • Option 1)

    mgR 

  • Option 2)

    2 mgR 

  • Option 3)

    1/2 mgR 

  • Option 4)

    3/2 mgR 

 

Answers (1)

U_s = \frac{- Gmm}{R } \\\\ U_p = \frac{- Gmm}{2R } \\\\ \Delta U = \frac{Gmm}{R } \left ( 1- \frac{1}{2} \right ) = \\\\ \Delta U = \frac{1}{2} \frac{Gmm}{R} \\\\ W = \Delta U = \frac{1 G mmR}{2 R*R} = \frac{1}{2}mgR


Option 1)

mgR 

Option 2)

2 mgR 

Option 3)

1/2 mgR 

Option 4)

3/2 mgR 

Posted by

Vakul

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

Rajasthan NEET UG 2025: Round 2 choice filling begins; security deposit up to Rs 5 lakh for MBBS admission
anam-khan

Punjab NEET UG 2025: Govt clarifies 1% quota for J-K migrants displaced by terrorist violence
anam-khan

NEET UG 2025 round 2 allotment result remains unchanged, clarifies MCC

Latest Question