1. A ball is thrown downward (not dropped) from the top of a tower. After being released, its downward acceleration will be
a. greater than g.
b. exactly g.
c. smaller than g.
d. need more information
2 . Is it possible for an object\'s instantaneous velocity and instantaneous acceleration to be of opposite sign at some instant of time?
c. need more information
3 . The slope of the curve in the position vs. time graph for a particle\'s motion gives:
a. the particle\'s speed
b. the particle\'s acceleration
c. the particle\'s average velocity
d. the particle\'s instantaneous velocity
e. not covered in the reading assignment