Asked by Anonymous
A block and tackle has a velocity ratio of 4 and it is used to vertically raise a load of mass 50kg.if the effciency is 80%,determine the minimum effort reguired to raise the load.
Answers
Answered by
DonHo
Velocity ratio (V.R) is:
distanced moved by effort / distance moved by by load
Mechanical Advantage (M.A)
=Load/Effort
Efficiency = M.A/V.R
In the problem:
Velocity Ratio = 4
Efficiency = 0.80
Load = 50kg * 9.81m/s^2 = 490.5N
Using the formula:
Efficiency = M.A / V.R
=> .80 = M.A / 4
=> M.A = 3.2
Now,
M.A = Load/Effort
3.2 = 490.5 / Effort
Effort ?
distanced moved by effort / distance moved by by load
Mechanical Advantage (M.A)
=Load/Effort
Efficiency = M.A/V.R
In the problem:
Velocity Ratio = 4
Efficiency = 0.80
Load = 50kg * 9.81m/s^2 = 490.5N
Using the formula:
Efficiency = M.A / V.R
=> .80 = M.A / 4
=> M.A = 3.2
Now,
M.A = Load/Effort
3.2 = 490.5 / Effort
Effort ?
Answered by
Felix
-487.3
Answered by
Felix
487.3
Answered by
Eureka
153.28
Answered by
Owoyemi Modupe Janet
_143
Answered by
Owoyemi Modupe Janet
493.7
Answered by
Bashiru jumoke
153.28
Answered by
Anonymous
156.25
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.