Elevator design,

lood $=(7$ people $)(75kg)=525kg$

Cabin moss $=350kg$

$40$:$1$ reduction rate

$V=1\frac{m}{s}(4$ stairs$)$ floors

counterweight mass $=(\frac{525}{2}+350)=612,5kg.$

Dionneter of pulley $=400mm$

Dioneter of pulley $=400mm2$

Find braking torque of the motor, Factor of safety and all necessary values about it $-$ Through Calculations.

$T_{\text{n}\text{o}\text{m}\text{i}\text{n}\text{a}\text{l}}=20,76Nm,R=\%62$

$F_{\text{n}\text{e}\text{t}}=9,81(525+350-612,5)=2575,125N$

$T_{\text{t}\text{o}\text{t}\text{e}\text{l}\text{L}\text{l}\text{i}\text{f}\text{t}\text{i}\text{n}\text{g}}$