Search results

BUMP, ive got another question A kite, 20m high, is blown along horizontally at 3m/s by the wind. At what rate is the string being let out when it is 40m long.

true...but high school kids are in "in general" a lot more immature than in adult society.

same sex is probably better because there is too many distractions in co-ed schools :rolleyes:

haha and i was revising the radians topic for the past few days aswell..

lol oh yeah i forgot that aswell....

:confused: but ur solution gives 6.7...

yeh i think thats right.....thx tommy

lol

lol it's never the last "real" holidays

the answer is 0.92 but i think it may be wrong..... shaon0's actual answer was 8.75... and if you times that by dV/dx u get 12 which means that the formula holds so i think the answer in the book is wrong...on the other hand how come shaon0 didn't change cos to -sin when he derived V.

anyone else want to have a go?

thx for the response but im afraid thats still wrong

Hey, ive just staterd this topic and having a little bit of trouble with this Q. i derived V to get -6sinpi/x and then subbed it into the formula accordingly but i somehow cant get the right answer. The volume of water in a tidal pool is given by V=2cos.3pi/x, where x is the depth of water...

yeh i agree with around a week but it also depends on the subject.

just think of the locus as a compass.

yeh thats what i thought it was

lol what?

if you have trouble memorising them then you might want to look at the proofs of these identities and try proving them yourself.

its just a basic trig identity...you should look over them

yeh what tim did was simplifying