Undergrad Mapertius's Principle and 2nd Newton's law

  • Thread starter Thread starter MP97
  • Start date Start date
  • Tags Tags
    Newton's law
Click For Summary
The discussion focuses on deriving the second Newton's law using the Mapertius principle in the context of perfectly elastic collisions and free fall acceleration. The original poster is encountering a persistent issue with obtaining a coefficient of 2 in their final calculations. Participants are asked to provide insights or explanations for this discrepancy. The conversation aims to clarify the application of principles and calculations involved in the derivation process. Assistance is sought to resolve the confusion surrounding the coefficient.
MP97
Messages
4
Reaction score
0
Hi, I have been working on deriving the second Newton's law from the Mapertius principle applied to a perfectly elastic collision from a free fall acceleration problem. These are my calculations, but I keep getting a coefficient of 2 in my final answer for some reason. Could someone explain to me what I am doing wrong?

IMG_3194.jpg
IMG_3195.jpg
IMG_3196.jpg


I appreciate any help you can provide!
 

Thread 'Reference frames, center of rotation, etc'

Topic about reference frames, center of rotation, postion of origin etc Comoving ref. frame is frame that is attached to moving object, does that mean, in that frame translation and rotation of object is zero, because origin and axes(x,y,z) are fixed to object? Is it same if you place origin of frame at object center of mass or at object tail? What type of comoving frame exist? What is lab frame? If we talk about center of rotation do we always need to specified from what frame we observe?
View full post »

Similar threads

Undergrad Spring balance analysis from a system point of view
  • · Replies 24 ·
Replies
24
Views
2K
Undergrad Newton's 2nd law for an object in free fall
  • · Replies 15 ·
Replies
15
Views
2K
Undergrad Weak principle of equivalence (Galileo, Newton)
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Are Newton's Laws just definitions?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Work - Energy Principle Application to Fluid Flow
  • · Replies 35 ·
2
Replies
35
Views
4K
Undergrad Do objects of different mass but same size/shape accelerate the same?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Work - Energy Principle Application to Fluid Flow
  • · Replies 48 ·
2
Replies
48
Views
5K
High School Action-reaction of a sailing boat and wind
  • · Replies 8 ·
Replies
8
Views
1K
High School How's it possible to push on systems with 2 parts? (Newton's third law)
  • · Replies 14 ·
Replies
14
Views
1K
Newton's 2nd Law confusion: mass times acceleration is not a force?
  • · Replies 39 ·
2
Replies
39
Views
3K