Question

15. A in 50 s. Find : (i) the maximum
velocity reached, (ii) the retardation in the last
50 s, (iii) the total distance travelled, and (iv) the
averagetrain starts from rest and accelerates uniformly at
a rate of 2 m s-2 for 10 s. It then maintains a
constant speed for 200 s. The brakes are then
applied and the train is uniformly retarded and
comes to rest velocity of the train.
Ans. (i) 20 m s-1, (ii) 0.4 m s?,
(iii) 4600 m, (iv) 17.69 m s-1​

Answer 1

Answer:

train starts from rest and accelerates uniformly at a rate of 2m/s^2 for 10s. It then maintains a constant speed for 200s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50s. Find : ( i ) the maximum velocity reached, ( ii ) the retardation in the last 50s, ( iii ) the total distance travelled, and ( iv ) th