ii) Obtain dimension of the following SI derived quantities. a) work b) power
Answers
Answered by
0
Answer:
ML²T-²
ML²T-³
Explanation:
Workdone =Force. Displacement
and Power =Workdone/time
Answered by
1
Answer:
Dimension of work - [ML²T⁻²]
Dimension of power - [ML²T⁻³]
Explanation:
a) Work
The equation of velocity = displacement / time
Dimension of velocity = [L] / [T] = [LT⁻¹]
The equation of acceleration = velocity/time
Dimension of acceleration = [LT⁻¹] / [T] = [LT⁻²]
The equation of force = Mass × acceleration
Dimension of force = [M] × [LT⁻²] = [MLT⁻²]
The equation of work = force × displacement
∴ Dimension of work = [MLT⁻²] × [L] = [ML²T⁻²]
b) Power
The equation of power = work / time
Dimension of power = [ML²T⁻²] / [T] = [ML²T⁻³]
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