Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 2 (Q.No. 13)
13.
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is
Discussion:
32 comments Page 4 of 4.
Rai Singh said:
1 decade ago
For an ideal machine MA = VR.
Chander kant said:
1 decade ago
MA = W/P = 1000/80 = 12.5.
Efficiency = 12.5/20*100 = 62.5%.
So its efficiency is above 50% so it is a reversible machine.
Efficiency = 12.5/20*100 = 62.5%.
So its efficiency is above 50% so it is a reversible machine.
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