Answer:
9. B
10. B
11. B
12. B
Explanation:
(Number 9 and 11)
A. 16 m/s is speed
C. 8 /s is time
D. 7 m, North is displacement
(Number 10 and 12)
A. 40 m, upward
C. 62 km, West
D. 75 cm, to the right
are all examples of displacement.
Distance - total length of path travelled (scalar)
Ex. 16m, 87cm
Displacement - shortest distance between initial and final position, with direction (vector)
Ex. 17m, West
Time - duration of the travel
Ex. 48 mins
Speed - how fast or slow an object travels (scalar)
Ex. 19 m/s, 30 m/s
Velocity - speed of an object, with direction (vector)
Ex. 17 m/s, West
