Lydia is running on the sidewalk by her house. She is running at a speed of 3 meters per second. Over a period of 10 seconds she increases her speed to 5 meters per second. Lydia's average _______ over this 10 second period is 0.2 m/s2.
Aforce
Bposition
Cacceleration
Dspeed
Aforce
Bposition
Cacceleration
Dspeed