0.7848 meter
19.6 meters / 64.4 ft
"Mean" means "average"= (distance covered) divided by (time to cover the distance)= ( 90 / 4.5 ) = 20 feet per second
They are the same .
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.
False v=1/2 a t2 t=5s a=9.81m/s2 v=122.625 m/s
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.
None.Speed is the distance covered per unit of time. If no distance is covered then the speed is 0.None.Speed is the distance covered per unit of time. If no distance is covered then the speed is 0.None.Speed is the distance covered per unit of time. If no distance is covered then the speed is 0.None.Speed is the distance covered per unit of time. If no distance is covered then the speed is 0.
19.6 meters / 64.4 ft
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?
That depends on how long it's been falling altogether. If it was just dropped at the beginning of the 2.56 seconds, and it's only been falling for 2.56 seconds altogether, then it has fallen 32.1 meters (105.3 feet). (rounded) If it was falling for some time before the 2.56 seconds began, then it fell farther. A falling object keeps falling faster and faster as time goes on.
5*9.8 = 49 metres per second.
4 Seconds
distance = speed x time so the distance is just the speed of the stone x 8 seconds
128
average sun distance form earth : 149669180 Km 1 light year = 9460528400000 Km distance covered by light in 1 year = 9460528400000 Km distance covered in 1 Sec = 299786 Km 149669180 km covered in = 149669180/299786 s = 499.25 light seconds = 18 light min 19.25 light seconds
96 feet per second
160 feet per second