Physics: Post your doubts here!

[hela]

Can you please explain projectiles and the usual formulae we have to use in the exam i dont understand it\... thank you

 

[TaffsAsLevel]

why is it wht? tell me ur doubt clearly so I cn xplain bttr
umm n a rule is a rule we cnt chng it....

I mean the reason behind why we should divide, why second order different angle? does it mean it is two different wavelengths?

 

[asd]

but the surface area exposed will also be less so air resistance will take more time to bring the drop to its terminal velocity.. nahi?

Well, I thought that way first, but maybe the surface area wala factor is not as effective as is the weight?

 

[goodluckayesha]

Can you please explain projectiles and the usual formulae we have to use in the exam i dont understand it\... thank you

which unusual formula??

 

[goodluckayesha]

I mean the reason behind why we should divide, why second order different angle? does it mean it is two different wavelengths?

its just a single wavelength n not 2nd order angle or sum thing u noe the formula a/2sin(teta)=n(lambda) ??? its just tht way??

 

[TaffsAsLevel]

Can you please explain projectiles and the usual formulae we have to use in the exam i dont understand it\... thank you

Projectile motion is like 2 different motions happening in a body, one is vertical and the other is horizontal.
It's like throwing a ball up vertically at a height h and throwing a ball horizontally with constant speed both happens at the same time

 

[axetreme.O]

Projectile motion is like 2 different motions happening in a body, one is vertical and the other is horizontal.
It's like throwing a ball up vertically at a height h and throwing a ball horizontally with constant speed both happens at the same time

well said..the last line.

 

[haha101]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w10_qp_22.pdf

Q4ii
please

 

[goodluckayesha]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_22.pdf

Q4ii
please

area under graph gives energy calculate for both n then subtract upper 1 minus the downer one

 

[haha101]

area under graph gives energy calculate for both n then subtract upper 1 minus the downer one

how to calculate the area as it isnt a triangle n marking scheme says not to use area of triangle

 

[goodluckayesha]

how to calculate the area as it isnt a triangle n marking scheme says not to use area of triangle

give the ms link also?

 

[axetreme.O]

how to calculate the area as it isnt a triangle n marking scheme says not to use area of triangle

count the number of sqquares between the curves....

 

[goodluckayesha]

count the number of sqquares between the curves....

counting squares is my doubt too wht scale do we take??

 

[axetreme.O]

a

give the ms link also?

answer is 6.4 (+-o.2)

 

[haha101]

give the ms link also?

open the qp link n type ms instead of qp

 

[haha101]

counting squares is my doubt too wht scale do we take??

exactly

 

[goodluckayesha]

open the qp link n type ms instead of qp

shut up cudnt u give the link instead of saying this??

 

[axetreme.O]

counting squares is my doubt too wht scale do we take??

calculate..and you will get 1mJ = 1cm2

 

[axetreme.O]

now you may ask how...? in that case click here.
http://www.twiddla.com/1177575

 

[goodluckayesha]

calculate..and you will get 1mJ = 1cm2

count all those tiny squares??? :O