7. The unit of mechanical advantage is
(a) N m-2
(b) Pa s-1
(c) kg m s-
(d) no unit
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7. The unit of mechanical advantage is
(a) N m-2
(b) Pa s-1
(c) kg m s-
(d) no unit
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Answer:
d) no unit
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Answer:
The mechanical advantage of a machine is the ratio of the load (the resistance overcome by a machine) to the effort (the force applied). For an ideal (without friction) mechanism, it is also equal to: There is no unit for mechanical advantages since the unit for both input and output forces cancel out.
So Option d is correct answer