Grade 12th passMechanics
A body of mass 4kg weighs 4.8 kg when suspended in a moving lift. The accleration of the lift is
1 Answer
Arun
As the apparent weight increase therefore we can say that acceleration of the lift is in upward direction.
R = m(g + a)
4.8 g = 4( g+ a)
hence
a = 0.2 g
a = 9.8 m/s2 (in upward direction)
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