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# Physics (help understand a formula) watch

1. Hello. Well I've come across a question which I didn't know how to do, I looked at the markscheme and it used this formula to do the question
(Ek = mv2/2) could you please explain me in detail why would you use this and maybe direct me to some example questions so I could get some practice done before the exam. Thank you!
2. (Original post by Edga)
Hello. Well I've come across a question which I didn't know how to do, I looked at the markscheme and it used this formula to do the question
(Ek = mv2/2) could you please explain me in detail why would you use this and maybe direct me to some example questions so I could get some practice done before the exam. Thank you!
Ek is Kinetic Energy

mv2/2 is 1/2 mv2

it's just E=1/2 mv2 which you should be familiar with.
3. (Original post by Edga)
Hello. Well I've come across a question which I didn't know how to do, I looked at the markscheme and it used this formula to do the question
(Ek = mv2/2) could you please explain me in detail why would you use this and maybe direct me to some example questions so I could get some practice done before the exam. Thank you!
see:
http://www.physicsclassroom.com/class/energy/u5l1c.cfm

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