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] |
Please help me get a concept across to my students. Here is the problem:
A person rides in the back of a pick-up truck moving forward at +20 mph
(relative to ground). The person throws a brick toward the back of the
truck at -5 mph (relative to the truck). What is the resultant velocity of
the brick relatvive to the ground?
...
Any ideas?