Consider a vehicle with velocity described by: from t = 0 s to 3 s velocity increases uniformly from 0 to 6 m/s; from t = 3 s to 8 s velocity is constant at 6 m/s; from t = 8 s to 10 s velocity decreases uniformly from 6 to 0 m/s.
State (a) the time interval when the vehicle is speeding up, (b) the interval when the vehicle moves at constant speed, and (c) the interval when the vehicle is slowing down.
(a)State the time interval when the vehicle is speeding up.(1)
(b)State the time interval when the vehicle moves at constant speed.(1)
(c)State the time interval when the vehicle is slowing down.(1)
(Total for Question 6 is 3 marks)