maharjangayash maharjangayash

25-09-2021
Chemistry

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Mechanical advantage of a machine is always less than velocity ratio. Why? d again in a sewing machine?
please fast

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flowerskk13 flowerskk13

25-09-2021

Answer:

The mechanical advantage (M.A) of a real machine is always less than its velocity ratio(V.R) because mechanical advantage decreases due to the friction and weight of moving parts of the machine whereas the velocity ratio remains constant

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