Question

The maximum stress that can be applied to the matenal
guess that can be applied to the material of a wire employed to suspend an elevator is -
nass of the elevator is 900 kg and it moves up with an acceleration of 2.2 m/s2 then calculate the minimum
radius of the wire.​

Answer 1

Explanation: The minimum radius of the wire when the maximum stress is applied to the material is as the following:

Using F=ma

T-mg = ma

T=m (a+g)

900 x (9.8 + 2.2)​ = 10810 N

stress ➰ = T/pie r2

➰pie  r2 = T

r2 = 10800/3/pie x 10 (8) x pie

r = 6mm

Answer 2

Answer:

plz refer to the attachment...

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