Using your knowledge of Newton's Laws, what might account for the differences? A. If he used the same rate of acceleration for each trip, they should have been the same amount of time. This
must be a user error.
B. If he used the same amount of force for each trip, the differences must be due to the amount of mass that he
was carrying.
C. If he used the same amount of force for each trip, the differences must be due to the rate of acceleration that he
applied.
D. If he carried the same amount of mass during each leg of the trip, the differences must be due to the rate of
acceleration he used.