D. speed in a specific direction
9. A ferry boat travels 120 km in 1 hour. What is the speed of the boat?
A. 60 km/h
C. 120 km/h
B. 60 km/s
D. 100 km/h
10. Acceleration is defined as the rate of change of
of an object with respect to time.
A. displacement
C. time
B. position
D. velocity