Answer

a) Acceleration = change in velocity / time (1) = 24 m s ^-1/ 80 s (1) = 0.30 m s ^-1

b) Between 230 and 290 s (1)

c)

i) 20s (1)

ii) 120s (1)

d) 960m + 1680m + 720m + 900m + 1500m + 900m = 6600 m (2)

e) 3360m - 3300m = 60m (1)