If the orbit of a rocket is a circle around the earth with a radius r
= 8 x 106 m, and the mass of the earth is 5.97 x 1024 kg while
that of the rocket is 0.5 x 106 kg, then what is the speed of the
rocket under uniform circular motion (in m/s, G = 6.67 × 10-11 N
(m/kg) 2)?
a 2.04 x 10-
b 7.06 × 10³
c 2.04 x 10-3
d 7.06 x 10°
e 7.06 x 105