The weight of a man in an elevator moving up with an acceleration equal to 3g is?

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Answer 1 · 2017-11-09T14:12:18

If #m# is the mass of man then his weight in lift is #4mg#

When lift is moving upwards a pseudo force (F) will act on man vertically downwards.

Therefore,

Weight of man #= mg + F#

#= mg + ma#

#= m(g + a)#

# = m(g + 3g) #

#= 4mg#