A2L Item 002

  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.
  • warning: Parameter 1 to theme_field() expected to be a reference, value given in /home/ibeatty/clickercentral.net/includes/theme.inc on line 171.

Which of the following statements are true?

A. While an object moves at constant speed, its acceleration must be zero.

B. For a ball to roll up a hill and then back down, its acceleration must change.

C. When an object’s velocity versus time graph crosses the time axis, its acceleration must be zero.

  1. Only (A)
  2. Only (B)
  3. Only (C)
  4. Both (A) and (B)
  5. Both (A) and (C)
  6. Both (B) and (C)
  7. All three are true
  8. None is true
  9. Cannot be determined