# Maths question on algebra/ square root

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#1
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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1 year ago
#2
a=m2s4. You have kg/kg so they cancel. m3/m simplifies to m2, s2/s-2 simplifies to s4. Simple index laws.
0
1 year ago
#3
(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.
You can treat the units as unknown variables and apply the law of indices to simplify the power.

I would leave the algebra to you.
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