## Question

###### On a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its Consider...

on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its Consider a 76.0-kg man standing maximum speed of 1.24 m/s in 0.750 s. It travels with this constant speed for the next 5.00 s. The elevator then undergoes a uniform acceleration in the negative y direction for 1.30 s and comes to rest. (a) What does the spring scale register before the elevator starts to move? N (b) What does the spring scale register during the first 0.750 s? N (c) What does the spring scale register while the elevator is traveling at constant speed? (d) What does the spring scale register during the time it is slowing down? N

## Answers

1: t2 t2-130s tot-p Vm124 ms t10750 s,t2- 5.00S fot-0750s aceleution 41lE 91-24 m/s before elevaton staststo move Rediny of spairy sale N 76Xo. NIE760N Aw Na-mg) 762+0) 0.75 N288565 N Aus xeedlinffspaing 4ale.tohen elevatuy movingatonst speed, N3-m76X1o N3760N A d dwiny slwiy deondy fspain Scale -24 Num8-a) P 9 634.35 N NY AvM

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