__________ is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion.a)Kinetic Energyb)Potential Energyc)Dynamic Energyd)Escape VelocityCorrect answer is option 'D'. Can you explain this answer?

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__________ is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion.

a)
Kinetic Energy
b)
Potential Energy
c)
Dynamic Energy
d)
Escape Velocity

Correct answer is option 'D'. Can you explain this answer?

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__________ is the speed that an object needs to be traveling to break...

Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. For example, a spacecraft leaving the surface of Earth needs to be going 7 miles per second, or nearly 25,000 miles per hour to leave without falling back to the surface or falling into orbit.

Since escape velocity depends on the mass of the planet or moon that a spacecraft is blasting off of, a spacecraft leaving the moon's surface could go slower than one blasting off of the Earth, because the moon has less gravity than the Earth.

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__________ is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion.a)Kinetic Energyb)Potential Energyc)Dynamic Energyd)Escape VelocityCorrect answer is option 'D'. Can you explain this answer?

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