Chemistry, asked by ErwinSchrodinger, 9 months ago

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Answered by rockyuvi666

Energy conversation principle:

-E1 + ½ mv^2 = E2

1/2mv^2 = E2 + E1

v^2 = 2(E2+E1)/m

v = √(2(E2+E1)/m)

ErwinSchrodinger: Also your answer is not matching with any of the options.

rockyuvi666: oops

rockyuvi666: sorry bro

ErwinSchrodinger: no problem.galati sabse hoti hai

rakesh58450: is the answer 3rd?

ErwinSchrodinger: no bro

ErwinSchrodinger: Answer is 2nd(B)

ErwinSchrodinger: Please Explain me the answer

rakesh58450: ok i get it...its 2nd then

ErwinSchrodinger: yes

Answered by rakesh58450

see this once i will explain in comments if u dont get it

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rakesh58450: take gravitational potential energy for example

rakesh58450: we use minus signs while solving problems

ErwinSchrodinger: okay thank u bro

rakesh58450: no problem!!....do ask me if face problems again!!

ErwinSchrodinger: in which class u are???

rockyuvi666: hey

ErwinSchrodinger: hmm

rakesh58450: i passed my 12 this yr....u?

rockyuvi666: did u oll watched kota factory

rakesh58450: yep

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