Question

A train is moving with the velocity of 45 km/hr. The
driver applies brake and the train gets stopped in o second
Now, calcolate retardation as well as distance covered by the train
before coming to the rest​

Answer 1

Answer:

here both retardation and distance covered will be 0

Explanation:

u=45km/hr. v=0. t= O

then

v=u+at

0=45+a×0

that is a=0

Answer 2

Velocity=45km/hr. Time=0. V=0. Then, V=U+AT 0=45+A*0. That is a=0