Question

calculate the work done by the force of gravitation due to Earth on a satellite orbiting around it in an orbit at a height 'h' above the surface.

Answer 1

Answer:

Answer

correct answer is

B

increase

Centripetal force=gravitational force

⇒

h

mv

2

=

h

2

Gm

e

m

⇒v=

h

Gm

e

Time period 'T'=

velocity

distance

=

v

2πh

=

(

h

Gm

e

)

1/2

2πh

⇒T=

(4m

e

)

1/2

2π

×h

3/2

⇒T∝h

3/2

⇒ If height 'h' is increased, time period 'T' will increase.