13Negative mass is an existing concept (Google it out..) .... but i dunno how n why it comes in here...
A Qn is.......
Two air bubbles in water ---
(a)attract each other (b)repel each other
(c) do not exert ny force on each other
(d)may attract or repel; depends on the distance between them.
The explaination fr the ans (a) goes ---
" A lighter body inside a denser medium behaves like a negative mass so far as Gravitational force is concerned.
2 air bubbles i.e. 2 negative masses will attract each other..."
The Explanation needs an explanation !
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4 Answers
13
1well even two positive masses attract each other.
so you could say air has positive mass so both attract each other.
in short either there must be a mis-print or the source is crap
13Yeah...tht was wht i thot of ; but the explaination confused me...
Wht strikes my mind is tht he says -
A Lighter body inside a denser medium behaves like a -ve mass ,,,,
Wht if v had a huge air bubble & an iron piece inside water ??
Won't they attract each other?? (however feeble the force may be...)