Asked by john

A 36 kg child steps on a scale in an elevator that starts at rest. The elevator then accelerates downward at 0.6 meters per second squared for 1.9 seconds. What is the reading on the scale (in kg)?

Answers

Answered by Elena
ma=mg-N
N=m(g-a) = 36(9.8-0.6)=331.2 N
m1=N/g =331.2/9.8=33.8 kg
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