Is it possible for a particle to move on curved path if no force acts on it?

Question

Does the answer depend on the frame of refrence chosen by us?

Answer 1

NO,
"A body will continue in motion and a body will remain at rest until an outside force acts with it", Newton first Law of Motion.

Answer 2

No, as far as Newtonian Mechanics.

Celestial Bodies which keep on moving on curved path are because gravitational force is acting upon them. In absence of gravity, they will move in straight direction only.

Now imagine anything moving infinitely in straight direction and when this knowledge, that the entire universe is like a curvature, is applied, will that motion be called as linear motion? So what appears to be straight while being in this universe and when the universe itself is a curvature, the motion is curved and not linear.

Comments from other experts please!

Answer 3

In classical physics: No.

In general relativity: No, but a particle's path may appear to be curved to an observer in different frame of reference. For example: to us it appears that the moon is following a curved path around the earth. But the moon itself thinks it is going straight ahead all the time and there is something weird about the geometry of space.

Answer 4

Hi. I can't imagine any place in the universe not influenced by gravity. If you assume that gravity 'bends' space, then yes. A particle would ALWAYS move in a curve. But if NO force acts on it? I do not think that is possible. (To find a place where no force exists.)

Answer 5

No.

A rotating frame of reference implies rotational velocity, and thus a centripetal force has to be present. A curved path implies an acceleration, thus a force, either on you (the observer) or on the particle.

Answer 6

no by newton's first law of motion

a body will remain at rest or continue in motion along a straigt line until and unless an external unbalanced force is applied to it.

Answer 7

no, without force its not possible for a body to move on a curved path.

Answer 8

The wing (or the chord line in a wing to be greater particular) makes a undeniable perspective with the relative wind. the perspective is named the "perspective of attack". At particular angles the relative wind has a laminar pass over the wings of the plane. in accordance to Bernoulli's concept which basically states that as quickly as the particle is accelarating, it imposes lesser rigidity. subsequently the suited of the wing has a curvature and the backside is comparatively flat. which skill, the wind accelarating on suited of the wind has lesser rigidity than the wind on the backside. that's given in laminar pass that the wind has to return and forth the width of the wing interior an identical time. and since the suited of the wing has a bigger area than the backside area, the wind has to return and forth swifter. subsequently impossing lesser rigidity in comparison to the backside, subsequently you have carry. additionally on your guidance, there are 4 forces on the plane for the duration of flight. carry, Weight, Drag, and Thrust. whilst carry is greater desirable than weight and thrust is greater desirable than drag. you have a effective secure flight domicile!!! :)

Answer 9

According to Newton's first law, if there is no external force (including the gravitational force) applied, it will not move.

Answer 10

THE ANSWER CAN B POSITIVE AS WELL AS NEGATIVE.ACORDING 2 NEWTONIAN MECHANICS ITS NOT POSSILBLE BUT AGAIN ACORDIND 2 NEWTONS FIRST LAW OF MOTION A BODY WILL KEEP ON PERFORMING MOTION WITH SAME VELICITY UNTILL ANY UNBALANCED FORCE ACTS ON IT.