A motorist traveling at 72km/h had his eyes shut for 0.4s during a hard sneeze. Calculate the distances covered by him during this time.
speed v = 72000 meters/3600 seconds
distance = v t = (720/36)*0.4 meters
= 20 *0.4 = 8 meters
To calculate the distance covered by the motorist during the 0.4 seconds, we can use the formula:
Distance = Speed × Time
Given:
Speed = 72 km/h
Time = 0.4 seconds
First, we need to convert the speed from kilometers per hour to meters per second, as the time is in seconds.
1 km = 1000 m
1 hour = 3600 seconds
So, the speed in meters per second would be:
72 km/h * (1000 m/1 km) * (1 hour/3600 seconds) = 20 m/s (approximately)
Now, we can calculate the distance covered:
Distance = Speed × Time
Distance = 20 m/s * 0.4 s = 8 meters
Therefore, the motorist covered a distance of 8 meters during the 0.4 seconds with his eyes shut due to sneezing.
To calculate the distance covered by the motorist during the 0.4 seconds when his eyes were shut, we need to use the formula:
Distance = Speed × Time
Given:
Speed = 72 km/h
Time = 0.4 seconds
First, we need to convert the speed from kilometers per hour to meters per second, as the time is given in seconds. To do that, we divide the speed by 3.6 (since 1 km/h = 1/3.6 m/s).
Speed in m/s = (72 km/h) / 3.6
= 20 m/s
Now we can simply multiply the speed by the time to get the distance covered:
Distance = (20 m/s) × (0.4 s)
= 8 meters
Therefore, the motorist covered a distance of 8 meters during the 0.4 seconds when his eyes were shut.