Answer:
W & X
Explanation:
gradient of a velocity - time graph indicates the acceleration.
straight lines ,
[tex]gradient = \frac{difference...in..Y..direction}{difference..in..X..direction}[/tex]
- positive gradient ----> acceleration
- negative gradient-----> deceleration
- gradient = 0 ------> constant velocity
curved lines indicate changing acceleration/deceleration
If we consider the gradient values here ,
W ----- 15/1 = 15
X-------(20-15)/1 = 5
Y ------(0/2) = 0
Z-------(0-20)/1 = (-20)
looking at these we can say
Y motion has no acceleration : moves in a constant velocity
Z motion has a negative acceleration (deceleration)
W & X have accelerating motion.
[tex]W_(acceleration)> X_(acceleration)[/tex]
