a train goes into a tunnel at 20m/s and emerges from itat 55m/s. the tunnel is 1500m long.assuming constant acceleration the time for which the train moves in tunnel is
physics - Henry, Saturday, October 12, 2013 at 9:20pm
V = Vo + a*t
t = (V-Vo)/a = (55-20)/0.875 = 40 s.