- #1

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But the decimal means i have to round two sig figs, which would make it 200N?

A very simple problem, I really don't know why I'm asking it.

- Thread starter vaironl
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- #1

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But the decimal means i have to round two sig figs, which would make it 200N?

A very simple problem, I really don't know why I'm asking it.

- #2

tiny-tim

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- #3

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Thanks for the reply, tim. "And let me say, that is a big post count"

My paper says 20.kg so I'm rounding to two significant figures. Am I right?

- #4

tiny-tim

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i understand "20 kg" and "20.0 kg", but i've never seen "20.kg" or even "20. kg"

- #5

Pengwuino

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So your answer is 200N, accurate to 2 significant figures.

Scientific notation is really great because it clears these kind of odd notations. 20kg to 2 significant figures in SI notation would be 2.0 x 10^1 kg, clearly showing the 0 is significant.

- #6

tiny-tim

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ah! thanks, Pengwuino!

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i understand "20 kg" and "20.0 kg", but i've never seen "20.kg" or even "20. kg"

Thanks, I knew something was going wrong. My teacher usually does things like that.

So your answer is 200N, accurate to 2 significant figures.

Scientific notation is really great because it clears these kind of odd notations. 20kg to 2 significant figures in SI notation would be 2.0 x 10^1 kg, clearly showing the 0 is significant.

I can't believe sometimes he even gets about 3-6 problems incorrectly which demonstrates unprofessional work ethic.

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