NpGot it!
Thaanks alot!
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NpGot it!
Thaanks alot!
Well If I put your formula in here, it will be like -p2-p1 which isn't even an optionchange of momentum in this case is p2-p1
p1-p2 sorryWell If I put your formula in here, it will be like -p2-p1 which isn't even an option
ahan ok leme see =)Can you explain q 9 aswell plzz
ans is A
But can u explain the logic???p1
p1-p2 sorry
But can u explain the logic???
for 32, resultant force is zero because it rotates at a constant speed because and anti clockwise because E is downward so downward is negative so it repels it and it became anti clockwise, C
For 23, try to compare both of the E for their respective length and radius then compare the multiples, I can't do the working its too long, answer B
For 20, E=mgx so g is the accelration due to gravity therefore g=E/mx or magnitude=E/mx and direction is toward earth but it says loses EPE so direction must be towards the right isn't it because it says P to Q. so A
for 32, resultant force is zero because it rotates at a constant speed because and anti clockwise because E is downward so downward is negative so it repels it and it became anti clockwise, C
For 23, try to compare both of the E for their respective length and radius then compare the multiples, I can't do the working its too long, answer B
For 20, E=mgx so g is the accelration due to gravity therefore g=E/mx or magnitude=E/mx and direction is toward earth but it says loses EPE so direction must be towards the right isn't it because it says P to Q. so A
Q32:
Resultant force is zero as forces acting on Q and -Q are same in magnitude but opposite in directions. Now you can see that both forces form a couple which turns the rod anticlockwise.
Q23:
Both wires are of the same material which is steel so both Young modulus are exactly same. DImensions do not matter when materials are exactly same
Q20:
Formula for PE is mgh
Here E is the potential energy lost. So:
pe=mgh
E=mgx
g=E/mx and this happens in the right direction. If it is in the opposite direction pe is gained not lost![/quo
Jazak Allah Khairan!
Well I don't get the question myself :/Can you explain q 9 aswell plzz
ans is A
How do u know my name? :O well only 6 papershey anooshay chemistry ke kar liye hain tm ne?
Umm.. Question no 7? plzz..Well I don't get the question myself :/
Cambridge should be sued for such questionsLol Nevermind..
Thankss
How do u know my name? :O well only 6 papers
konsa mein batoon?Cambridge should be sued for such questions
Cambridge should be sued for such questions
The answer is C cuz the area which is to displacement is a trapezium hence area of trapezium is half into height into sum of parallel sides hence area is 0.5 into 2 into (6+12)=18...I hope this is rightUmm.. Question no 7? plzz..
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