The human body can only withstand deceleration of -294 m/s^2 (30g's). People typically experience this amount of deceleration during car accidents. If a car going 30 m/s comes to a stop with this acceleration, how long does it take to stop?

Question

anonymous · Answer

a=v/t
so t=v/a
t=30(m/s)/294.10(m/s^2) 
t=0.102 sec

anonymous · Answer

key words:
with this acceleration; a=-294 m/s^2
a car going;             v=30 m/s

was this problem ignoring fluid resistance and force of friction between the car and the road?