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various constants ,like Gravitational constant, has got dimensional formula. why is it that in an equation we always take constants as dimensionless for eg-in the equation K.E=1/2mv[2], while finding dimension of K.E, we take 1/2[k] as dimensionless?

various constants ,like Gravitational constant, has got dimensional formula. why is it that in an equation we always take constants as dimensionless for eg-in the equation  K.E=1/2mv[2], while finding dimension of K.E, we take 1/2[k] as dimensionless?

Grade:11

2 Answers

Akash Kumar Dutta
98 Points
9 years ago

all types of constants can be added but all types of units cant,
infact any two different units cant be added.
as a result the constant are considered dimensionless since then only they can be added altogether.

tejas naresh patel
40 Points
9 years ago

 all units cannot be added 

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