Now in "real life," this automobile is cruising at 16.5 m/s (equal to 59.4 km/hr) when it is about to hit a pedestrian stuck in the middle of the road. the super hero mr. incredible comes to the rescue. he does not want to get sued, however. therefore, he will not push the car with a force greater than 4.0 ✕ 104 n; otherwise, the bumper will get damaged. how much time (in s) does he need to stop this car?