b)
Add all those distances together and you get: 3780 metres
c) T2 takes 150s to complete the journey.
I calculated T1 to take only 118s.
But they travelled the same distance and route. Im guessing that Train 1 was therefore faster. Maybe it had a bigger average speed.
d) For T2
s = 3870
t = 150
u = 0
v = 0
a = ?