Question
The apparent weight of the body becomes zero in which of
the following cases in the elevator?Solution
The apparent weight of the body becomes zero in an elevator during free fall of a body under gravity. It can be said that the body becomes weightless as the force of reaction between the person and the plane with which he is in contact vanishes.
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
64, 32, ? , 48, 96, 240
10, 20, 60, 300, ?, 23100
3, 5, 12, 38, 154, ?
120, 120, ?, 360, 900, 2700
12    17    44    147    ?   3065   18420
...827, 820, 806, 785, 757, ?
58     69      56       ?      54       73
...12, 19, 33, ?, 117
251, 130, 274, ?, 301, 76Â