Distance covered in nth second means the distance covered in that particular second . It cannot be more than the distance covered in n seconds which means the distance covered in a total time of n seconds.
A stone falls freely from rest The total distance covered by it in the last second of its motion equals the distance covered by it in the first three seconds How long does the stone remain in air?
"Mean" means "average"= (distance covered) divided by (time to cover the distance)= ( 90 / 4.5 ) = 20 feet per second
Speed, or velocity, is measured in distance per second; it is the rate of change of distance with time.Acceleration is the rate of change of velocity with time, or distance per second per second, which is distance per seconds squared,
At 10 miles per hour, a distance of 10.67 feet is covered every second.
in x direction
Divide the distance by the time. In this case, the answer will be in meters/second. If you want to convert that to the more common kilometers per hour, multiply this result by 3.6.
Time = Distance/Speed = 90.7 m / 65.30 km per hour = 90.7 m / (65.30*1000/3600 m per sec) = 5.0003 seconds (approx)
Multiply by a value in seconds, that way you find out the distance. The distance will be in metres which will be travelled in a certain amount of seconds
Distance is a unit of distance, while seconds are units of time. The two are unrelated.
A light second is a unit of distance, not a unit of time.
An unspecified unit of speed.
Speed = distance/Time = 1000 metres/100 seconds = 10 metres per second.