Question

the velocity ratio of a certain lifting lifting machine is 50. determine the effort required to lift a load of 1500 N. if efficiency of the machine is 40% ​

Answer 1

Answer:

Effort=75N

Step-by-step explanation:

Do it with the formula E%=MA/VR

Answer 2

Answer:

75N

Step-by-step explanation:

Concept

• The distance traveled by any part of a machine in comparison to the distance traveled by the driving part at the same time.Velocity Ratio

Given

Velocity Ratio(V.R)=50

Weight(W)=1500N

Efficiency($n$)=40%

Find

Effort(P)

Solution

$n=\frac{MA}{VR}$×100

$MA=\frac{n*VR}{100}$

$MA=\frac{40*50}{100} =20$

$MA=\frac{W}{P} \\P=\frac{W}{MA} \\P=\frac{1500}{20} =75N$

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