37
Question
Class III levers have mechanical advantage less than one. It cannot be used:
Class III levers have mechanical advantage less than one. It cannot be used:
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Solution
The correct options are
B To obtain loss in speed
C It acts as force multiplier
D It is used in raising a load
Class III levers have mechanical advantage less than one, but by using them we get a gain in speed, i.e. a larger movement of the load is obtained by smaller movement of effort. For example, the blade of a knife moves longer by smaller movement of its handle.
B
To obtain loss in speed
C
It acts as force multiplier
D
It is used in raising a load
Class III levers have mechanical advantage less than one, but by using them we get a gain in speed, i.e. a larger movement of the load is obtained by smaller movement of effort. For example, the blade of a knife moves longer by smaller movement of its handle.
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