choose the physical quantity which has a unit
a) mechanical advantage
b) velocity ratio
c) efficiency
d) work output
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choose the physical quantity which has a unit
a) mechanical advantage
b) velocity ratio
c) efficiency
d) work output
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Answer: d) work output
Explanation: The SI unit is JOULE
Answer:
The physical quantity which has a unit is work output.
Explanation:
Mechanical advantage is the ratio of load to the force applied. Both are similar quantities with the same units. So their ratio will have no unit.
Velocity ratio is the comparison of two different velocities. The above-said condition is also applied here.
Efficiency is the ratio of input energy to output energy. This is also a ratio of similar quantities. So they also have no unit.
The unit of work is Joule (J). It is a physical quantity that has a specific unit.