Class 11 NEET Physics Gravitation Questions

Orbital speed of the satellite around the earth is
v=√

GM

r

Where,
G = universal gravitational constant
M = mass of earth
r = radius of the orbit of the satellite
For satellite A
rA=4R,vA=3V
vA=√

GM

rA

...........(i)
For satellite B
rB=R,vB=?
vB=√

GM

rB

...........(ii)
Dividing equation (ii) by equation (i), we get
vB=3V√

4R

R

vB=6V