Physics
(a) State the relationship between mechanical advantage, velocity ratio and efficiency.
(b) Name the term that will not change for a machine of a given design.
Machines
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Answer
(a) The mechanical advantage of a machine is equal to the product of its efficiency and velocity ratio.
M.A. = V.R. x η
(b) The term that does not change for a machine of a given design is its velocity ratio.
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