Qsn no 42. 0.2-109
A 400 kg earth sate illite is to an
orbil of radius to an orbit of radius AR. Kind the
energy required to
in and the change in PE of the satellite in this
transfer.
What is the binding energy of a satellite of mass 200
kg •nos ing in a orbit around earlh close
to its surface and a height of60() kilt? G 6.67 v 10
SI units: Radiusofearlh 6400 ktn: Mass of earth
energy ofa satellite is J Calculate its
KE and PF.
(4 x J; -8X10• J)
49.
. Find the total energy and binding ofan artificial
satellite of mass 801) kg orbiting at a height of 1800
km above the surface of the earth.
[G = 6.67K 10 Sl units; Radius Of 6400
km: Mass or earth 6*10-4 kg I
(-1.952
J; 1.9S2XlO'O J)
Find he escape velocity for a 2000 kg body from the
earth's surlåce and the the body musl have to
overcome the earth •s gravitational field.
[G 6.67*10 Sl units: Radius of earth 6.4
m; Mass of carth kg]
(11.18 km/s;
6.25x10'OJ)
