Question

The velocity time graph represents the journey of a train P travelling along a straight
horizontal track between two stations which
are 1.5 km apart. The train P leaves the first
station, accelerating uniformly from rest for
300 m until it reaches a speed of 30 m/s. The
train then maintain this speed for T sec before
decelerating uniformly at 1.25 m/s2
, coming to
rest at the next station.
(a) Find the acceleration of P during the first 300 m of its journey.
(b) Find the value of T.

Answer 1

Answer:

(a) The train has a uniform velocity. as the value of velocity does not change with time.

(a) The train has a uniform velocity. as the value of velocity does not change with time.(b) There is no acceleration because there is no change in the velocity.