Question 13
A ship leaves Manila bay at 6:00. Shown below is the distance travelled by the ship over time. When is the ship NOT affected by a net force?

Original choices:
A. From 6:00 to 8:00
B. From 7:00 to 9:00
C. From 8:00 to 10:00
D. From 9:00 to 11:00
E. From 10:00 to 12:00
Editorial review: explain the result and whether the source determines a unique answer.

Original choices:
A. From 6:00 to 8:00
B. From 7:00 to 9:00
C. From 8:00 to 10:00
D. From 9:00 to 11:00
E. From 10:00 to 12:00
Editorial review: explain the result and whether the source determines a unique answer.