Female worker $(40-59)$ with with average height $(1618$mm$),$ average proportions, average body mass $\backslash ((80\backslash$mathrm$\{$Kg$\})\backslash ),$and average shoulder strength holding an iPad with case $(1\mathrm{.}6$ pounds, $750$ grams$)$ with one outstretched arm $(640$ mm from an outstretched shoulder at shoulder height$)$ would experience a total shoulder load of Nm$?$

Numeric $1$ point

For the preceding problem the relative workload for the shoulder is $\backslash \%$MVC$.$

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Based on the ACGIH TLV$$ a worker should not maintain this exertion for more than

seconds to avoid objectionable discomfort.

Based on the ACGIH TLV$50$s exertion at $33\backslash \%$MVC should be followed by approximate how many seconds of recovery time?

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