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U
unique111
*my
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Yes, in E.C the velocity gets exchanged. And remember Pi = Pf :)
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And don't worry, you'll score well if you want me to help you understanding any concepts dont hesitate to ask :)
U
unique111
What is P? Ohh okay momentum?
Sure, i'll ask. Thanks for all the help. Now, i'll finish the paper.
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Yeah Initial momentum = Final momentum :)
Sure, meet you in 1 hour :) Ask me doubts here, if my and inorganic date is finished earlier I'd solve it early :p
U
unique111
finally finished it. i am just too slow. q. 20,21,26,27,28,29,33,35,36. :/
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Can you wait for 15 mins please.
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unique111
sure.
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Thanks :)
U
unique111
shouldn't I be thanking you? :)
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Well lets start :p
20)
Use formula 1/2 * F * extension.
so 0.5 * 12 * (60*10^-3)
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21) Check our text ch - 8 you'll get answer will be A :)
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Getting me ?
U
unique111
where did 60 come from?
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Extension yaar, 100 - 40 = 60
U
unique111
Darn it! I am really a fool.
U
unique111
I was taking 100mm. :(
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27)
Okay, here radius is constt hence there is no change is distance (zero)
so work done = 0
so A
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28)
f = E * q
Here, Electric field and charge both are constt and not changing.
And hence force remains at constt, Ans is St. D
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