A train has an initial speed of 20 m/s. I t accelerates uniformly at 0.5 m/s 2 for 30 s. At t?

... = 30 s, it reaches speed v. It then moves at this speed for an additional 15 s. (a) Calculate speed v of the train at time t = 30 s or:

... = 30 s, it reaches speed
v
.
I
t then moves at this
speed for an additional 15 s.
(a) Calculate speed
v
of the train at time t = 30 s

or:... = 30 s, it reaches speed v. It then moves at this speed for an additional 15 s. (a) Calculate speed v of the train at time t = 30 s

Tags:speed,