Question
a.
The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another
b.
The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only
c.
A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work
d.
all of the above
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Q. Which of the following statement is correct as regard to the difference between a machine and a structure?
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