Question

The brakes applied to a car produce an acceleration of 6 m/s in the opposite direction .If the car stops in 2 sec calculate the distance travelled ?

Answer 1

a=-6m/s^2
t=2sec
v=0m/s
u?
s?
v=u+at
u=v-at
u=0-(-6×2)
u=12m/s


s=v^2-u^2/2a
s= 0-144/-12
s=12m