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Dmitriy789 [7]
3 years ago
6

A screw Jack whose pitch is 2mm is used to raise a bus of mass 900kg through height of 20cm. The length of the Tommy of the Tomm

y of the jack is 40cm. Calculate the velocity ratio of the machine
Physics
1 answer:
Nikitich [7]3 years ago
8 0

R= 40cm —> R= 0.4 m

P= 2mm —> P= 0.002 m

V.R =  \frac{2πR}{p}  =  \frac{2 \times 3.14 \times 0.4}{0.002}  = 1256

I think this is the answer

I hope I helped you

Good luck ^_^

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