Question

find the deceleration of a car after braking.The car is moving with72 km/h and comes to rest after half an hour​

Answer 1

Answer:

72 + 72 = 144 ye answer sahi hai

Answer 2

Answer:

A = -0.011m/sec²

Step-by-step explanation:

First convert km/h to m/sec :

72km/h -> 72×5/18 = 20m/sec

30min -> 30×60 = 1800 sec

u= 20m/sec

v=0

t=1800 sec

a=v-u/t

a=0-20/1800

a= -0.011 m/sec²

please mark as Brainliest