a vehicle travels from A to B in 8 sec. at a constant speed of 25 mph. A second vehicle travels the distance in 8 sec. What is the distance from A to B and how fast is the second vehicle traveling ?
1
Expert's answer
2012-05-25T08:53:32-0400
v=25, t=8/3600=1/450 => s=vt=25/450=1/9=0.111111111..... So, speed of second vehicle v'=s/(8 sec)=25 mph
v=25, t=8/3600=1/450 => s=vt=25/450=1/9 So, speed of the& second
vehicle v'=s/(3 sec)=1/27 mps=1/27*3600 mph=133.3 mph
Sonny
25.05.12, 17:58
I made a mistake in my problem. I am very sorry and appreciate your
help. I need to know the speed of the second vehicle. It travels the
distance in 3 sec. instead of the time I gave you for car #1.
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v=25, t=8/3600=1/450 => s=vt=25/450=1/9 So, speed of the& second vehicle v'=s/(3 sec)=1/27 mps=1/27*3600 mph=133.3 mph
I made a mistake in my problem. I am very sorry and appreciate your help. I need to know the speed of the second vehicle. It travels the distance in 3 sec. instead of the time I gave you for car #1.
Leave a comment