Question

A train moving with the speed of 9pkm/h is stopped in 1 minute.find its retardation?

Answer 1

hello friend...
good morning...

to find retardation use have to use following formula...

u = 0, v = 9 km/h ( convert into m/s).
t = 1 min = 60 sec.

v = u + at
9 = 0 + (a×60)
9 = 60a
a = 9 /60

hope it will help you.
best of luck.