Mathematics
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zarkam21:
Is this correct so far? (Physics)
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zarkam21:
Vocaloid:
good
zarkam21:
for the second part to question one the equation would just be f=l/t
Vocaloid:
yes
zarkam21:
and for the second it would be v^2=a/r??
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Vocaloid:
take the original equation and multiply both sides by r
Vocaloid:
a = v^2/r
multiply both sides by r
zarkam21:
v^2=a*r
Vocaloid:
good now take the square root of both sides
zarkam21:
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Vocaloid:
you had it, it's just sqrt(ar)
zarkam21:
so v=sqrt ar
Vocaloid:
also check the units on your acceleration value
zarkam21:
don't I substitute numbers in for velocity or no its just v=sqrt ar
Vocaloid:
that's it
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Vocaloid:
they don't give you any numbers for b
zarkam21:
wouldn't we use the same number for A? but instead solve for velocity
Vocaloid:
you are already given the velocity in part a so solving for velocity again would be pointless
zarkam21:
true.
zarkam21:
Thank you
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zarkam21:
Vocaloid:
v = sqrt(ar) = ?
zarkam21:
here is a question which has the numbers given
zarkam21:
6.32?
zarkam21:
because 20*2 which is 40 and the sqrt of that is 6.32
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Vocaloid:
good, don't forget units
zarkam21:
m/s?
Vocaloid:
good
zarkam21:
for b on question two the velocity question what were the units again
zarkam21:
m/s?
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Vocaloid:
yes