A spacecraft is traveling in space far from any planets or stars. How much force is required to maintain the spacecrafts speed? 1/2 the mass of the spacecraft 1/4 the mass of the spacecraft none twice the mass of the spacecraft I feel like its none, since there are no planets or stars to exert force on the rocket but Id like to be sure.

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23-12-2016
Physics

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A spacecraft is traveling in space far from any planets or stars. How much force is required to maintain the spacecrafts speed? 1/2 the mass of the spacecraft 1/4 the mass of the spacecraft none twice the mass of the spacecraft I feel like its none, since there are no planets or stars to exert force on the rocket but Id like to be sure.

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michael2501 michael2501 · Answer 1 · 2016-12-23T21:34:28+01:00

michael2501 michael2501

23-12-2016

none
An object will remain at a constant speed unless an external force acts upon it.

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rohinikannan232 rohinikannan232 · Answer 2 · 2022-07-21T09:36:13+02:00

None, an object will remain at a constant speed unless an external force acts upon it.

What is force?

The push or pull on an object with mass that causes it to change its velocity. Force is an external agent capable of changing the state of rest or motion of a particular body. It has a magnitude and a direction. Force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force exerted by an object equals mass times acceleration of that object: F = m * a .

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