a block of mass 2kg rest on the floor of an elevtor. which is moving down with an acceleration g . then the apparent weight of the block is?
回答 (2)
2015-09-10 6:47 pm
mg : the gravitation force acting on the mass
R : Reaction of the floor of the elevator acting on the mass
F = ma
(mg - R) = mg
R = 0
The apparent weight of the block = 0 N ...... (Ans)
R : Reaction of the floor of the elevator acting on the mass
F = ma
(mg - R) = mg
R = 0
The apparent weight of the block = 0 N ...... (Ans)
2015-09-10 6:39 pm
Zero........
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