Question

Q. A satellite of mass m is revolving around a planet of mass M is a circular orbit of radius r. what is its total energy.

Answer 1

Answer:

-GMm/2r

Explanation:

Total energy = total kinetic energy + total potential energy.

Potential energy = - GMm/r

Kinetic energy = 1/2 × -ve of potential energy

⇒ Kinetic energy = GMm/2r

Hence the total energy = GMm/2r - GMm/r

⇒ GMm/r ( 1/2 - 1 )

⇒ - GMm/2r

#GIRLSOPHILE

Answer 2

Answer:

total energy = -GMm/2r