question from class today


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Lucy Agnew 3E
Posts: 30
Joined: Fri Sep 28, 2018 12:26 am

question from class today

Postby Lucy Agnew 3E » Fri Oct 12, 2018 9:16 pm

Can anyone explain how Lavelle cancelled both the s and s^-2 to result in the only unit being m left over? If that makes sense haha!
Lucy Agnew

Ethan Breaux 2F
Posts: 63
Joined: Sat Sep 29, 2018 12:16 am

Re: question from class today

Postby Ethan Breaux 2F » Fri Oct 12, 2018 9:25 pm

I think you should write out the entire question haha I don't remember that happening but maybe I'm in a different lecture or missed it or something haha

Samantha Pacheco 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:29 am

Re: question from class today

Postby Samantha Pacheco 2K » Fri Oct 12, 2018 9:32 pm

If you make it into a fraction it will be easier to see
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1K Kevin
Posts: 47
Joined: Fri Sep 28, 2018 12:24 am

Re: question from class today

Postby 1K Kevin » Fri Oct 12, 2018 9:41 pm

The units of the numerator are J *S which is (kg*m^2*S^-2) *S
The denominator for it is (kg)*(m*S^-1) If you move the s^-1 to the numerator (1/s^-1 = s^1/1) the you get s^2 *s^-2 which will cancel the seconds and the kilograms


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