If AC = 18 and CD = 5, AD = [?]

13

Step-by-step explanation:

ADC   if this line is AC=18

DC      and this is line CD=5

We can just substract 18-5 to get AD which is 13

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

theres no picture: /

step-by-step explanation: