A cross -country skier moves from location A to location B to location C to location D . Each leg of the back -and-forth motion takes 1 minute to complete ; the total time is 3 minutes . (The unit is meters .) West East t 0min t=2min t=3min t=1min 20 60 100 120 100 160 Calculate the average speed and average velocity (in mi/hr) during the three minutes of recreation.

Location A => t=0 => 0

Location C => t=2 => 40

Location D => t=3 => 120

Location B => t=1 => 160

Total time 3min

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.