The chart shows data for four moving objects.
Which object has the greatest acceleration?
W
X
Y
Z

Answer:
Object Y has the greatest acceleration.
Step-by-step explanation:
We know that acceleration (a) = [tex]\frac{(final\ velocity) - (initial\ velocity)}{time}[/tex].
Lets calculate the velocity of each objects separately.
Acceleration of W (a) = [tex]\frac{(final\ velocity) - (initial\ velocity)}{time}=\frac{(29-11)}{6} =3\ m\ s^-2[/tex]
Acceleration of X (a) = [tex]\frac{(final\ velocity) - (initial\ velocity)}{time}=\frac{(34-10)}{12} =2\ m\ s^-2[/tex]
Acceleration of Y (a) = [tex]\frac{(final\ velocity) - (initial\ velocity)}{time}=\frac{(40-12)}{7} =4\ m\ s^-2[/tex]
Acceleration of Z (a) = [tex]\frac{(final\ velocity) - (initial\ velocity)}{time}=\frac{(28-20)}{8} =1\ m\ s^-2[/tex]
Comparing all the values we see that acceleration of object [tex]Y[/tex] is greatest among all.