Question

53. A car driver travelling with a uniform velocity of 2 m/
s notices a railway crossing at a distance of
435 m from him and also he notices that it is going
to be closed in 10 seconds. First he decides to
cross the level crossing hence a accelerates his
car at the rate of 2 ms-2 for five seconds. Then he
decides to stop the car. So he applies brake and
stops the car exactly before the level crossing
(without following the timer). Calculate the minimum
rate at which he has to decelerate the car so that
he stops the car exactly before the level crossing.
(2) 18 m/s2
(1) 1.8 m/s
(3) 0.18 m/s2
(4) 3.6 m/s2
(Tamil Nadu, Stage-1, 2016-17)​

Answer 1

Answer:

answer for your question is 18m/s2

Answer 2

Answer:

hi ur name is rohit sharma or somerhing else