A2L Item 052

  • 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.

A block attached to the end of a spring is hanging at rest from the ceiling as shown at the left below. After the block is pulled down and released it moves up and down for an extended period of time. The motion during one cycle is shown in the graph at right below.

Several points are indicated on the graph. At which point is the spring force exerted on the block the greatest?

  1. Point A
  2. Point B
  3. Point C
  4. Point D
  5. Points B and D
  6. Points A and C
  7. The spring force is always the same
  8. None of the above
  9. Cannot be determined