001 1.0 points Ann is driving down a street at 58 km/h. Suddenly a child runs into the street. If it takes Ann 0.742 s to react and apply the brakes, how far will she have moved before she begins to slow down? Answer in units of m.
58 km/hr = 16.11 m/s
Now use your usual formula for distance to get 5.98m
my bad. see your 2nd posting
To find the distance Ann will have moved before she begins to slow down, we need to consider her reaction time and the distance she travels during that time at her initial speed.
First, let's convert Ann's speed from km/h to m/s. We know that 1 km is equal to 1000 m and 1 hour is equal to 3600 seconds. Therefore, to convert from km/h to m/s, we need to multiply the speed by (1000/3600).
Speed in m/s = 58 km/h * (1000 m/3600 s) = (58 * 1000) / 3600 = 1600 / 60 = 40/3 m/s (approximately)
Now, let's calculate the distance Ann travels during her reaction time of 0.742 s at her initial speed.
Distance traveled during reaction time = Initial speed * Reaction time
Distance traveled during reaction time = (40/3 m/s) * 0.742 s
Next, multiply the initial speed by the reaction time.
Distance traveled during reaction time = (40/3) * 0.742 m
Using a calculator, we can find that the distance traveled during the reaction time is approximately 32.97 meters.
Therefore, Ann will have moved approximately 32.97 meters before she begins to slow down.