For a certain machine VR is 125 to lift a load of 11.90KN an effort of 190 N is required to lift a load of 72 KN and identify the type of machine
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Judd said I don't have a good day today I have been a long day and night and sweet and sour chicken nuggets for a few minutes late to
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The effort required to lift a load of 72 KN by the machine is 1149.70 N and the machine is reversible
Given,
VR of the machine = 125
W of first load = 11.90 KN
P for first load = 190 N
W of second load = 72 KN
To Find,
P for the second load
Solution,
We can solve this problem using the following method:
Now:
Since η for the machine is greater than 50%, the machine is reversible
Now, the effort required to lift a load of 72 N:
Therefore, the effort required to lift a load of 72 N by the machine is 1149.70 N
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