The velocity-time graph of a cyclist consists of straight-line segments joining (0,0)(0,0)(0,0), (4,12)(4,12)(4,12), (10,12)(10,12)(10,12) and (16,0)(16,0)(16,0), where time is measured in seconds and velocity in m s−1^{-1}−1.
Find the acceleration during the first 4 s.
Find the distance travelled during the 16 s.