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Need help if possible. Can anyone explain how you work out what the si units of a if a = [b over ed). Si unit for b is kg m3 s^2, si unit for e is kg and si units for d is m s^-2.
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a=m2s4. You have kg/kg so they cancel. m3/m simplifies to m2, s2/s-2 simplifies to s4. Simple index laws.
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(Original post by Redstudent)
Need help if possible. Can anyone explain how you work out what the si units of a if a = [b over ed). Si unit for b is kg m3 s^2, si unit for e is kg and si units for d is m s^-2.
Need help if possible. Can anyone explain how you work out what the si units of a if a = [b over ed). Si unit for b is kg m3 s^2, si unit for e is kg and si units for d is m s^-2.
![[a] = \dfrac{[b]}{[ed]}](https://www.thestudentroom.co.uk/latexrender/pictures/c9/c995301e57031cdbefa7536cb92c05b6.png "[a] = \dfrac{[b]}{[ed]}")
![[a] = \dfrac{\text{kg} \cdot \text{m}^3 \cdot \text{s}^2}{\text{kg} \cdot \text{m} \cdot \text{s}^{-2}}](https://www.thestudentroom.co.uk/latexrender/pictures/a5/a5930a88f8d0cd89f5ce5592ac704987.png "[a] = \dfrac{\text{kg} \cdot \text{m}^3 \cdot \text{s}^2}{\text{kg} \cdot \text{m} \cdot \text{s}^{-2}}")
![[a] = \text{kg}^{1 - 1} \cdot \text{m}^{3 – 1}\cdot \text{s}^{2 – (-2)}](https://www.thestudentroom.co.uk/latexrender/pictures/ca/ca6f280e3d4733b2107ff05b8b9e6679.png "[a] = \text{kg}^{1 - 1} \cdot \text{m}^{3 – 1}\cdot \text{s}^{2 – (-2)}")
I would leave the algebra to you.
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