Gareth56 Posted August 25, 2008 Posted August 25, 2008 Is the answer to this equation correct? I'm unsure if it should 2g in the denominator of the answer. I think it should be just g. (U sinX)^2/g - (U sinX)^2/2g = (U sinX)^2/2g (The g and the 2g are the denominator of (U sinX)^2 respectivley)
Willa Posted August 25, 2008 Posted August 25, 2008 That's right. In order to subtract the two fractions, you first have to find a common denominator. Since the common denominator would be 2g, that is the denominator in the answer as well.
Gareth56 Posted August 25, 2008 Author Posted August 25, 2008 Thanks for that. I didn't look on them as being fractions
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