Answer to Question #37237 in Mechanics | Relativity for nebilabdurahman

Question

A train travelling along a straight track starts from rest at point A and accelerates uniformly to 20 m/s in 20 second. it travels at this speed for 60 second, then slows down uniformly to rest in 40 second at point c. it stays at rest at this speed for 30 second, then slowls down uniformly to rest in 10 second when it reaches point B.
a.plot a graph of the motion of the train
b.use your graph to calculate
i.The train displacement from A when it reaches point C
ii.The train's displacement from A when it reaches point B
iii.The trains acceleration each time its speed changes