InterviewSolution
 Saved Bookmarks
    				| 1. | 
                                    A balloon filled with a lighter gas occupies a volume of 1500m. Its mballoon + mass of gas in it) is 1650 kg. It is tied with a thread and floating in at1.3 kg/m3. The pull on the thread tied to rope is(A) Zeromass (mass of material ofair of density is(B) 3000 N(D) 16.5 N(C) 1950 N | 
                            
| Answer» | |