Question

If a body is moving with 90 kmph is retarding with 2 m/s2 in how much time will it come
to rest​

Answer 1

Explanation:

given

u=90 km/h, expressing in m/s=(90×100)/ 60×60=25 m/s

v=0 m/s;a=−0.5 m/s

2

v=0;u=25 m/s

v=u+at

t=(v−u)/a

=(0−25)/(−0.5)

=50s