0

Guest

Courses New

when is mass negetive?

when is mass negetive?


 

Grade:

1 Answers

Askiitians Expert Himanshu Geed - IIT Delhi
31 Points
14 years ago

Dear Edison,


The idea of a negative mass is conjectural, since no material object has ever been found that can be shown by experiment to have a negative mass. In considering hypothetical particles with negative mass, it is important to consider which of these concepts of mass are negative; however, in most analyses of negative mass, it is assumed that the equivalence principle and conservation of momentum continue to apply. The Einstein equivalence principle postulates that inertial mass must equal passive gravitational mass; while the law of conservation of momentum requires that active and passive gravitational mass must be identical.


If one were to treat inertial mass mi, passive gravitational mass mp, and active gravitational mass ma distinctly, then Newton's law of universal gravitation would take the form

m_ia=-G\frac{m_pm_a}{r^2}

Thus objects with negative gravitational mass (both passive and active), but with positive inertial mass, would be expected to be repelled by positive active masses, and attracted to negative active masses.


Please feel free to post as many doubts on our discussion forum as you can. If you find any question
Difficult to understand - post it here and we will get you the answer and detailed solution very quickly. We
are all IITians and here to help you in your IIT JEE preparation.


All the best!!!


Regards,

Askiitians Experts
Himanshu Geed

Think You Can Provide A Better Answer ?

Other Related Questions on General Physics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More