See Our team

Wondering how we keep quality?

Got unsolved questions?

Ask Questions

Engineering
GATE
CBSE
NCERT
Psychology
English
Computer
Constitution
Astrology
Yoga
Economics
Physics
Biology
Electronics
Microprocessor
Career
Interview
Anatomy
Botany

## What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a circular orbit at an altitude of 2R ? - physics 2013

(1) 5GmM/6R (2) 2GmM/3R (3) GmM/2R (4) GmM/3RBy:milan-ransingh

Taged users:

Likes:

Be first to like this question

Dislikes:

Be first to dislike this question

Talk about thisDelete|Like|Dislike|

## Answers

Solution :

The kinetic energy at altitude 2R=GMm/6R

The gravitational potential energy at altitude 2R=âˆ’GMm/3R

Total energy =kâˆˆ+PE=âˆ’GMm/6R

Potential energy at the surface is âˆ’GMm/R

âˆ´ Req. kinetic energy =GMm/Râˆ’GMm/6R

=5GMm/6R

aksingh1818

Likes:

|aksingh1818

Dislikes:

Be first to dislike this answer

Talk about this|Once you have earned teacher badge you can edit this questionDelete|Like|Dislike|

------------------------------------

## Use Me ?