How does speed differ from velocity?

1
Created by Boundless
How does speed differ from velocity?
A
Speed has only direction
B
Speed is a vector quantity and has only magnitude
C
Speed has both mangitude and direction
D
Speed is scalar quantity and has only magnitude
2
Created by Boundless
If you walk -100 m in 20 seconds, what is your velocity?
A
0.2 m/s
B
-0.2 m/s
C
-5 m/s
D
5 m/s
3
Created by Boundless
How does on determine instantaneous velocity?
A
Calculate the change in distance using a motion graph
B
Calculate slope of a tangent line through the relevant point
on its distance vs time graph
C
Calculate the direction an object is traveling in one second
D
Calculate the speed of an object