Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
The problem arrises when you want to talk about negative accelerations.
They are likely to see decceleration as a different conceptual thing,
rather than the negative, or opposite of acceleration. There will also be
a problem with negative velocities have positive accelerations.
They need to see that when a ball rises the velocity decreases at the
same rate that it increases as it falls, and conclude for themeselves in
the end that the acceleration is the same in both cases.