Question

body moving with a uniform velocity 36Km/h stops in 2s. The retardation of the body in m/sec.square is *​

Answer 1

Answer:

-5m/s2

Explanation:

u=36km/hr

 =10m/s (36*5/18)

v=0 (as the body stops)

t=2s

a=v-u/t

here velocity is decreasing so retardation.

0-10/2

=-10/2  =-5