A satellite used in a cellular telephone network has a mass of 2240 kgkg and is in a circular orbit at a height of 790 kmkm above the surface of the earth. 1) What is the gravitational force FgravFgravF_grav on the satellite? Take the gravitational constant to be GGG = 6.67×10−11 N⋅m2/kg2N⋅m2/kg2 , the mass of the earth to be memem_e = 5.97×1024 kgkg , and the radius of the Earth to be rerer_e = 6.38×106 mm 2) What fraction is this force of the satellite's weight at the surface of the earth?
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
A satellite used in a cellular telephone network has a mass of 2240 kgkg and is in a circular orbit at a height of 790 kmkm above the surface of the earth.
1) What is the gravitational force FgravFgravF_grav on the satellite?
Take the gravitational constant to be GGG = 6.67×10−11 N⋅m2/kg2N⋅m2/kg2 , the mass of the earth to be memem_e = 5.97×1024 kgkg , and the radius of the Earth to be rerer_e = 6.38×106 mm
2) What fraction is this force of the satellite's weight at the surface of the earth?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
