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vard and extend the arms while placing an object into the trunk of a car. Assum driver lifts a 60-lb box from the ground into a trunk. Being lazy, the driver simp ts 90° to pick up the box from the certain level (V=40) at a short horizontal

vard and extend the arms while placing an object into the trunk of a car. Assum driver lifts a 60-lb box from the ground into a trunk. Being lazy, the driver simp ts 90° to pick up the box from the certain level (V=40) at a short horizontal

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Answer the attached question and its sub-parts. Thanks

2. Before recent automotive design changes, it was not unusual to have to lean forward and extend the arms while placing an object into the trunk of a car. Assume the driver lifts a 60-lb box from the ground into a trunk. Being lazy, the driver simply twists 90° to pick up the box from the certain level (V=40) at a short horizontal distance (H=1Oin). The vertical travel distance is the difference between the vertical location of the box at the destination (assume the bottom of the trunk is 34in from the ground) and the vertical location of the box at the destination (V=6), yielding D=34. Assume that this is a one-shot lift; therefore FM=1. Also assume that the box is fairly small and compact, but has no handles. Thus, coupling is fair with CM= .35. Assume a longer reach (H=12in) into the trunk because of the bumper and high trunk lip and no twisting for the destination. a.) Determine the RWL of the origin. b.) From question "A", determine the RWL of the destination. c.) From question "B", determine the Lifting Index of the worker.
Transcribed Image Text:2. Before recent automotive design changes, it was not unusual to have to lean forward and extend the arms while placing an object into the trunk of a car. Assume the driver lifts a 60-lb box from the ground into a trunk. Being lazy, the driver simply twists 90° to pick up the box from the certain level (V=40) at a short horizontal distance (H=1Oin). The vertical travel distance is the difference between the vertical location of the box at the destination (assume the bottom of the trunk is 34in from the ground) and the vertical location of the box at the destination (V=6), yielding D=34. Assume that this is a one-shot lift; therefore FM=1. Also assume that the box is fairly small and compact, but has no handles. Thus, coupling is fair with CM= .35. Assume a longer reach (H=12in) into the trunk because of the bumper and high trunk lip and no twisting for the destination. a.) Determine the RWL of the origin. b.) From question "A", determine the RWL of the destination. c.) From question "B", determine the Lifting Index of the worker.
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