Question

A Honda city car is traveling at 54 km/h. If brakes are applied so as to produce uniform retardation of 3m/s2. Calculate the time taken by it to stop
.
with formula step by step

Answer 1

Answer:

3s

Step-by-step explanation:

v=0m/s

u=54km/h= 54×5/18= 15m/s

a= -5m/s^2

now by using first equation of motion

v=u+at

0= 15+(-5)t

-15= -5t

-15/-5=t

3s =t