A satellite will crash into the Earth if its velocity:

In summary, the velocity required for a satellite to crash into the Earth is at least 7.8 kilometers per second, but it can still happen if the satellite's orbit decays or if it collides with another object in space. The Earth's atmosphere plays a crucial role in a satellite's potential crash, as it can slow down the satellite and cause it to eventually crash into the Earth's surface. When a satellite crashes into the Earth, it will break apart and potentially cause damage or injuries. Even if a satellite is actively controlled, it can still crash into the Earth due to mechanical failures, human error, or unexpected events in space.
  • #1
csurfus1
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Homework Statement



A satellite will crash int the Earth if its velocity:

stays constant
increases dramatically
decreases dramatically

Answer: decreases dramatically.??
 
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  • #2
csurfus1 said:

Homework Statement



A satellite will crash int the Earth if its velocity:

stays constant
increases dramatically
decreases dramatically

Answer: decreases dramatically.??

Correct.
 

FAQ: A satellite will crash into the Earth if its velocity:

1. What is the velocity required for a satellite to crash into the Earth?

The velocity required for a satellite to crash into the Earth depends on several factors, including the mass and size of the satellite, the altitude of its orbit, and the composition of the Earth's atmosphere. In general, a satellite would need to be traveling at a velocity of at least 7.8 kilometers per second (4.8 miles per second) to overcome the Earth's gravitational pull and crash into its surface.

2. Can a satellite crash into the Earth if its velocity is too slow?

Yes, a satellite can still crash into the Earth even if its velocity is slower than 7.8 kilometers per second. This could happen if the satellite's orbit decays over time due to atmospheric drag or if it collides with another object in space, altering its trajectory towards the Earth.

3. How does the Earth's atmosphere affect a satellite's velocity and potential crash?

The Earth's atmosphere has a significant impact on a satellite's velocity and potential crash. As a satellite enters the Earth's atmosphere, it experiences drag, which slows it down. If the satellite's velocity is not high enough to overcome this drag, it will eventually crash into the Earth's surface.

4. What happens to a satellite when it crashes into the Earth?

When a satellite crashes into the Earth, it will typically break apart into smaller pieces due to the impact and the forces of gravity. These pieces may burn up in the atmosphere or crash onto the Earth's surface, potentially causing damage or injuries.

5. Can a satellite crash into the Earth if it is actively controlled?

Yes, a satellite can still crash into the Earth even if it is actively controlled. Factors such as mechanical failures, human error, or unexpected events in space can cause a satellite to lose control and crash into the Earth's surface.

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