UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are balanced.
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They do not act on the spacecraft.
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They reinforce one another.
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None of the above
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Detailed explanation-1: -These forces of inertia and gravity have to be perfectly balanced for an orbit to happen.
Detailed explanation-2: -In flight, a rocket is subjected to four forces; weight, thrust, and the aerodynamic forces, lift and drag.
Detailed explanation-3: -This balance of gravity and inertia is really important to how the planets move. These two forces create our solar system orbits.
Detailed explanation-4: -A satellite maintains its orbit by balancing two factors: its velocity (the speed it takes to travel in a straight line) and the gravitational pull that Earth has on it.
Detailed explanation-5: -That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity. Newton was the first to theorize that a projectile launched with sufficient speed would actually orbit the earth.
Detailed explanation-6: -A satellite is revolving around the Earth in a well defined circular orbit. The gravitational force between the Earth and satellite is the centripetal force of the circular motion.
Detailed explanation-7: -An object’s momentum and the force of gravity have to be balanced for an orbit to happen. If the forward momentum of one object is too great, it will speed past and not enter into orbit.