10. The figure below shows a velocity - time graph of a car journey. 22 Velocity (m/s) time(s) The car starts from rest and accelerates at 2.75m/s² for t seconds until its speed is 22m/s. It then travels at this velocity until 40 seconds after starting. Its breaks bring it uniformly to rest. The total journey is 847m long and takes T seconds. Calculate the: 1)Value of t 2)Distance travelled during the first t seconds 3)Value of T 4)Final deceleration