A2L Item 137

  • 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 slides along a frictionless surface and onto a slab with a rough surface. The plot on the right shows the velocity of the blue slab as a function of time. The slab has mass of 4kg and the block has mass of 2kg. What is the friction force on the small block at t = 1 second?

  1. 0.5 kg-m/s2
  2. 0 kg-m/s2
  3. 1 kg-m/s2
  4. 4 kg-m/s2
  5. 2 kg-m/s2
  6. None of the above
  7. Cannot be determined