A train starting from rest attains a velocity of 72 km/h in 5min.Assuming that the acceleration is uniform ,find (1) the acceleration and (2) the distance travelled by the train for attaining this velocity.
2 answers
vf=at solve for a. put km/h into m/s, and 5min into seconds.
2. d = 0.5a*t^2,
t = 5min. = 300 s.
t = 5min. = 300 s.
1 answer