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October 20, 2014

October 20, 2014

Posted by **Katie** on Friday, January 18, 2013 at 10:51am.

Kinetic energy is (Yu - 1) (mp) (c)^2

= 1/2 (mp) (c)^2

Yu = 1.5

Yu = 1/(square root) 1 - (u/c)^2

1/(square root) 1 - (u/c)^2 = 1.5

u= 0.745c

How do I solve for u? I'm extremely confused on how to do this. I know you square 1/(square root) 1 - (u/c)^2 to both sides esp. 1.5 to get rid of the square root. But up to there I'm confused to how to solve for u

- Physics -
**Steve**, Friday, January 18, 2013 at 5:02pm1/√(1-(u/c)^2) = 3/2

√(1-(u/c)^2) = 2/3

(1-(u/c)^2) = 4/9

(u/c)^2 = 5/9

u/c = √5/3 = .745

u = .745c

- Physics -
**Katie**, Saturday, January 19, 2013 at 8:36amthank you

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