Abingdon Watches Jackie, Product Information Manual

Page: 20 / 31

20
THE INNER RING
). K
EEP THIS IN MIND FOR THE UPCOMING
SPEED
/
TIME
/
DISTANCE PROBLEMS
.
O
UTER
R
ING
= D
ISTANCE OR
S
PEED
M
IDDLE
R
ING
= T
IME IN MINUTES
I
NNER
R
ING
= T
IME IN HOURS
S
PEED PROBLEMS ARE LIKE THE TIME PROBLEMS WE JUST
DID
,
EXCEPT WE ARE FINDING THE
RATE. R
EMEMBER IN
THE TIME PROBLEMS HOW OUR SPEED WAS OUR
RATE?
W
ELL
,
HERE WE DON
’
T HAVE THE
RATE,
BUT WE HAVE THE
DISTANCE AND THE TIME
. K
NOWING THE DISTANCE WE
FLEW AND TIME IT TOOK TO FLY
,
WE CAN EASILY FIGURE OUT
THE AVERAGE SPEED AT WHICH WE WERE FLYING
.
E
XAMPLE
2:
Y
OU FLEW
130
KNOTS
(
DISTANCE
)
AND IT TOOK YOU
47
MINUTES
(
TIME
).
W
HAT WAS YOUR AVERAGE SPEED
?
1. R
OTATE THE OUTER RING SO THAT
130 (13
WILL
REPRESENT
130
IN THIS EXAMPLE
)
IS IN LINE WITH
47.
2. Y
OUR AVERAGE SPEED IS FOUND ON THE OUTER
RING OPPOSITE THE
RATE
ARROW
. I
N THIS CASE