Homework Help: a person stands on a bathroom scale that rest on t

Posted by bb on Monday, February 4, 2013 at 10:09am.

a person stands on a bathroom scale that rest on the floor of an elevvator. when the elivetor is stationary the scale registers 50kg. when the lift acclelerates up ward the scle registers 60kg .taking g=10m/s^2, the best estimate acceleration of the lift is ;

a person stands on a bathroom scale that rest on t - Damon, Monday, February 4, 2013 at 10:22am
m = 50 kg
weight = 50 * g
F = m a
f up from scale - m g = m a

60 * g - 50 * g = 50 * a
10 g = 50 a

a = 0.2 g
if g = 9.91 m/s^2
then a = 1.96 m/s^2

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