a particle suffers from zero external force. is it possible to move it with non zero velocity?

Question

motion

Answer 1

It can move with non - zero velocity only if it already is in motion traveling with the same velocity. If it is at rest with no external force acting on it, then it is not possible for it to move with non-zero velocity.

Answer 2

I suppose you could consider a photon as a particle that moves even though it has no force acting on it.

It has zero rest mass, so it always travels at the speed of light.

Otherwise, I think you should give more information. Normally something cannot acquire energy (ie move) without a force being applied to it, and doing work on it. Are you interested in perpetual motion? Because none of us are.

Answer 3

You need an external force just to accelerate /retard the body.

If the body is already moving with a non-zero velocity then it will continue to move with that velocity without the application of any external force (if we assume that there is no effect of friction on that body)

Answer 4

yes but if it s already moving with a non-zero velocity and if there is no force such as fiction or gravity opposing the motion of the object .

Answer 5

Only if the particle is already in motion and that too on a frictionless surface

Answer 6

hey dude.its simple man.acc. to NEWTON'S LAWS OF GRAVITATION,every body has a tendency to attract other.two bodies kept at a distance can move towards each other through gravitational force of attraction(note that here the bodies can initially be at rest,seperated by finite distance)hence have nonzero velocity

Answer 7

No. How could it change velocity with no applied force. DUMB.