Question

an effort of 4n is applied to lift a load of 20n. if the effort arm is 5m, calculate the following : load arm, input work, output work

Answer 1

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In a lifting machine, an effort of 500 N is to be moved by a distance of 20 m to raise a load of 10000 N by a distance of 0.8 m. Determine the velocity ratio and mechanical advantage?

Easy

Solution

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Correct option is

D

25 and 20

Distance moved by effort is 20m,that of load is 0.8m

VR=

L

d

E

d

VR=

0.8

20

VR=25

the load is 10,000N and effort=500N

MA=

effort

d

load

d

MA=

500

10000

MA=20