5.5 miles
Speed = distance/time So speed = 100/5 = 20 Answer: 20m/s.
4 miles per second
speed = distance / time 100 m / 25 sec = 4 m/sec
Average speed = (250 / 5) = 50 meters per second.Initial speed = 0Final speed = 100 m/sAcceleration = (100 / 5) = 20 m/s2===> Must be a rocket-propelled ball; its acceleration is 2G !
0.1 x 3600/5 = 72 kph
The speed of light in a vacuum is 186282.397 miles per second.The distance something travels in a given time and at constant speed is given byd = s*twhere d is the distance traveled, s is the speed, and t is the time.In our case, s = 186282.397 miles per second and t= 100 seconds.d = (186282.397 miles per second)*(100 seconds) = 18628239.7 milesSo, in 100 seconds, light travels 18628239.7 miles.
The speed after 100 seconds is: speed =1000m/s + 4m/s^2x100s= 1000m/s + 400m/s=1400 m/s.
Light. Since the speed of light is almost a million times the speed of sound (in air), it's hardly necessary to do lots of calculations to get this answer.Update: the number of seconds is actually irrelevant. To know how fast something goes, you only need the speed.
Just divide the distance by the time. This will give you the speed in meters/second. If you want to convert that to kilometers/hour instead, multiply the result by 3.6.
100 m in 2.5 seconds is the same as 0.1km in 1/1440 hour, which is 144 km per hour.
100 miles/50 seconds= 2 miles per second average speed
speed =distance/time speed = 100/50 = 2 m/sec