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Physics 19 Online
OpenStudy (anonymous):

what is the force required to keep a body moving in the straight line with a velocity of 29 m/s

OpenStudy (anonymous):

That is not enough information.

OpenStudy (anonymous):

Look, is there friction? Drag? Under the circumstances you described, the best I can do is say, "F=0", as a body moving at 29 ms^-1 will continue as such without any forces acting on it.

OpenStudy (anonymous):

so what can cause a bodies velocity to change

OpenStudy (anonymous):

An acceleration will cause a body's velocity to change. Acceleration components in force, impulse, etc. exist.

OpenStudy (anonymous):

i think u are rigth but better say that the unbalanced force will change the motion .try to apply newton s 2 law .only an unbalanced force can change motion

OpenStudy (anonymous):

excuse me newtons 1 law

OpenStudy (anonymous):

Alright, so I should say a "nonzero acceleration" will change motion. Gravity, for instance, is a fundamental interaction that imparts acceleration.

OpenStudy (anonymous):

i do not understand u . but i think to close the topic lets just apply newtons 1 law of inertia to the question

OpenStudy (anonymous):

no NET FORCE is required to keep the body in motion

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