2 hours
The average speed for both men (together) is 6.66... (repeating) km per hour.
Each second has 1,000 msec in it. Multiply the number of seconds by 1,000 and you have the number of milliseconds in the same length of time.
ms or msec
275 km/hr
20 km/hr - 5 km/hr = 15 km/hr
It is 2.5 km.
KMHR was created on 1981-10-26.
1000 msec = 1 sec 30,000 msec = 30 sec
2 hours
The average speed for both men (together) is 6.66... (repeating) km per hour.
1000
Each second has 1,000 msec in it. Multiply the number of seconds by 1,000 and you have the number of milliseconds in the same length of time.
ms or msec
3500 msec
170.88 MPH
Let t=0 denote the start of transmission. At t=1 msec, the first frame has been fully transmitted. At t=271 msec, the first frame has fully arrived. At t=272 msec, the frame acknowledging the first one has been fully sent. At t=542 msec, the acknowledementbearing frame has fully arrived. Thus, the cycle is 542 msec. A total of k frames are sent in 542 msec, for an efficiency of k/542. Hence a) k=1, efficiency=1/542=0,18% b) k=7, efficiency=7/542=1,29% c) k=4, efficiency=4/542=0,74%