Why do Newton's laws of motion only work in inertial frames?

  • Context: Undergrad 
  • Thread starter Thread starter astro2cosmos
  • Start date Start date
  • Tags Tags
    Law Newton's law
Click For Summary
SUMMARY

Newton's laws of motion are only valid in inertial frames of reference, as they do not account for fictitious forces present in non-inertial frames. Fictitious forces, such as the Coriolis force and centrifugal force, are necessary to apply Newton's laws in accelerating reference frames. These forces are introduced to reconcile the discrepancies observed when analyzing motion from a rotating or accelerating perspective. Understanding the role of fictitious forces is crucial for accurately applying Newtonian mechanics in various contexts.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with inertial and non-inertial frames of reference
  • Basic knowledge of fictitious forces, including Coriolis and centrifugal forces
  • Concept of acceleration in physics
NEXT STEPS
  • Research the mathematical formulation of fictitious forces in non-inertial frames
  • Explore the implications of Coriolis force in meteorology and oceanography
  • Study the effects of centrifugal force in rotating systems
  • Learn about the transition from classical mechanics to relativistic mechanics
USEFUL FOR

Physics students, educators, and professionals interested in classical mechanics, particularly those studying motion in rotating or accelerating frames of reference.

astro2cosmos
Messages
71
Reaction score
0
why the Newton's law of motion are only valid in inertial frame of reference, not in non-inertial frame? since force like Coriolis force are not considered for these laws.
 
Physics news on Phys.org
The Coriolis force is an example of a fictitious force that needs to be added when viewing things from a rotating frame in order to apply Newton's laws. Fictitious forces only appear in accelerating reference frames.
 
Hi astro2cosmos! :smile:

In a non-inertial frame, Newton's laws of motion are valid if we allow fictitious forces such as centrifugal force and Coriolis force …

that is what the fictitious forces were invented for, to make Newton's laws work! :wink:
 

Similar threads

  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 114 ·
4
Replies
114
Views
7K
  • · Replies 35 ·
2
Replies
35
Views
5K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 6 ·
Replies
6
Views
1K
Replies
5
Views
2K
  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 17 ·
Replies
17
Views
2K
  • · Replies 117 ·
4
Replies
117
Views
10K
  • · Replies 25 ·
Replies
25
Views
3K