114
Suppose you had the problem:
“What acceleration is needed to increase the speed of a car from
16 67⋅ m/s (60kph or ~38mph) to 27 78
m/s (100kph or 60mph) in
a distance of 100m (~110 yd)?”
We’ll assume that you have already entered the equation into E2 (as above)
and have made sure that it is ed.
Solving for a missing value
If you press NUM to change to the NUM view,
you will see something similar to the screen on
the right. What values are showing on your
screen will depend on what happens to be in
the memories V, U, A and D at the time.
Pressing SHIFT CLEAR will zero all values.
Move the highlight to V and enter the value 27 78
, then to U and enter 16 67⋅
and finally to D and enter 100.
Now move the highlight back to A (the value
you’re trying to find) and press the
button. You should find that you obtain the
answer to our problem of 247⋅ m/s
2
.
The INFO report
When the
process has finished, you can
obtain a report on it by pressing the
button. The result in this case may not seem
very informative but there is more about these
messages on page114.
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