question_answer

A train is moving at a speed of 60 m/s at 10.00 a.m. and at 80 m/s at 10:02 a.m. Assuming that the train moves along a straight track and the acceleration is constant, the value of acceleration is:

A) \[300\,m/{{s}^{2}}\]               

B) \[1/6\,m/{{s}^{2}}\]

C) \[40\,m/{{s}^{2}}\]     

D)        \[6\,m/{{s}^{2}}\]

E) None of these