Question

2 Questions based on KINEMATICS......HELP REQUIRED!!!!

Answer 1

@agent0smith @Ashleyisakitty @april115 @andriod09 @BulletWithButterflyWings @e.cociuba @terenzreignz @timo86m @yrelhan4 @Phoenixuncaged @Luigi0210 @Loser66
GUYS/GALS PPPPPLLLLLLLLLLSSSSSSSSSSS HELP!!

Answer 2

@NaCl @nincompoop

Answer 3

:c I dont know how to do dis -.-

Answer 4

No prob..Cheers!!....But I really need the friggin ans/method!!

Answer 5

Attaching it sideways really doesn't help :P

Answer 6

are you there?

Answer 7

exir.ru/solutions/Kinematics.htm this could help .. Found few similar sums

Answer 8

@agent0smith @Ashleyisakitty @april115 @andriod09 @BulletWithButterflyWings @e.cociuba @terenzreignz @timo86m @yrelhan4 @Phoenixuncaged @Luigi0210 @Loser66

Answer 9

AC looks like diameter right ?

Answer 10

Ya

Answer 11

well g along AC (call it gc) equals g
g along AD (call it gd) equals gcosa
and gb equals gcos(a/2)
agree so far ?

Answer 12

Figured that!!

Answer 13

now, if AC is the diameter so
AB = AC*cos(a/2)
AD = AC*cos(a)

Answer 14

agree ?

Answer 15

Yup

Answer 16

so now use
y = gt^2/2

Answer 17

Wat answer do u get.Pls post ur work!!:)

Answer 18

for AB we get:
AC*cos(a/2) = gcos(a/2)*(tb)^2/2
AC = g(tb)^2/2

Answer 19

looks like the times are equal

Answer 20

so c,b,d are the answers

Answer 21

yes it is

Answer 22

On to the next one,I guess!!

Answer 23

mmm

Answer 24

i did something, i would like to hear though what would you do

Answer 25

i mean, i got one of the answers there

Answer 26

take v=5t for 1st case!!
I will take u=v=5t.......for second case!!

Answer 27

Is my meth correct??

Answer 28

vav = (v1 + v2)/2
vav = (0.25v,vsqrt(3)/4)
|vav| = v/2

Answer 29

that is what i did anyway

Answer 30

How did u get v1=0.25v??

Answer 31

no, v1 = (v,0)

Answer 32

So wats 0.25v....Pls sho the calculations!1

Answer 33

v1 , v2 are vectors .. look at what i draw

Answer 34

v1 + v2 = (v,0) + (-vcos60,vsin60) = (0.5v,vsqrt(3)/2)
so vav = (v1+v2)/2 = (0.25v,vsqrt(3)/4) <- this is a vector!!
now take its magnitude and get
v/2

Answer 35

The drawing's not helpin...:(
CAn u do a wrtiten post??

Answer 36

*written

Answer 37

Hand drawn I mean!!

Answer 38

Or draw it a bit btr with the sides!!