A car is travelling along a horizontal road. The car takes 120s to travel between two sets of traffic lights which are 2145m apart. The car starts from rest at the first traffic light and moves with a constant acceleration of
until its speed is
The car then maintains its speed from "t" second . The car then moves with constant velocity at the second traffic light.
a. Sketch a speed time graph between the two sets of traffic lights.

b. Find the value of "t".

A motorcycle leaves the first set of traffic light 10s after the car has left the first set of traffic light. The motorcycle moves from rest with constant acceleration "a" ,
and passes the car at point "a" which is 990m from the first set of traffic light. When the motor passes the car, the car is moving with a speed of
c. Find the time it takes for the motorcycle to move from the point "a".

d. Find the value of "a"