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Physics 16 Online
OpenStudy (anonymous):

f=6i-8j+10k a=1m/s2

OpenStudy (anonymous):

find mass of the body.

OpenStudy (anonymous):

f=ma f and a are vectors u can write \[f=ma \ \ \ then \ \ \ \left| f \right|=m \left| a \right|\]

OpenStudy (anonymous):

maye |f|*m=a

OpenStudy (anonymous):

after that

OpenStudy (anonymous):

well first get magnitude of f and you know a is 1 so 1*m=|f| solve for m

OpenStudy (anonymous):

i hav done that i m asking that after that

OpenStudy (anonymous):

becoz we can't gt mass in i,j,k,

OpenStudy (anonymous):

square all the i k j values add them up then square root it

OpenStudy (anonymous):

hw to split that one

OpenStudy (anonymous):

that will be the magnitude of your force

OpenStudy (anonymous):

when you see a vector inside || it means magnitude like you se |f|

OpenStudy (anonymous):

m=6i-8j+10k/1 am i right

OpenStudy (anonymous):

you have to find the magnitude of the force before you can divide it

OpenStudy (anonymous):

f=6i-8j+10k\[|f|=\sqrt{(6)^2+(-8)^2+(10)^2}\]

OpenStudy (anonymous):

@timo86m is that how you find the magnitude...just making sure

OpenStudy (anonymous):

Yes that is right Romero :)

OpenStudy (anonymous):

m is a Scalar not a vector so \[m=\frac{\left| f \right|}{\left| a \right|}=\frac{\left| f \right|}{1}=\left| f \right|=10\sqrt{2}\]

OpenStudy (anonymous):

ok tnx

OpenStudy (anonymous):

1gm cm/s=x newton second.find x

OpenStudy (anonymous):

i hav asked another 1

OpenStudy (anonymous):

ruchi draw it instead

OpenStudy (anonymous):

it looks more like momentum than a force to me.

OpenStudy (anonymous):

|dw:1341755473496:dw|

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