Assuming this is not a trick question, it can be restated:
If an automobile is traveling at 65 miles per hour, what is the interval in seconds to travel one mile?
There are a few approaches to solve this problem. The clearest one involves conversions between miles per hour and miles per minute etc. This kind of problem is sometimes used in an aptitude test, and knowing and understanding a shortcut method to get to the answer can be key to completing all of the problem on the exam.
In this case here is what I would do.
Background known fact is that 60 miles per hour is One Mile per minute-- one mile per 60 seconds. Quick thought on concept brings understanding that if you go FASTER than 60 mph, the time must be shorter than 60 seconds. In fact--- it is all linear and you can use a simple proportion. 60 mph divided by 65 mph times 60 seconds---- the answer is: 55.4 seconds to the nearest tenth.
A trick part to the question is that without first THINKING about the concept, and understanding that the answer MUST be less than 60 seconds, the temptation in running through an exam COULD be to remember the 60 seconds 60 mph relationship, and then quickly check off on multiple choice 65 seconds as the answer matching 65 MPH. Unfortunately that would be, of course, incorrect and the answer to the question would indicate in the test a flawed thinking process when stressed, or at least missing the concept of inverse relationships.
It is 20 seconds.
Three numbers between 21 seconds and 22 seconds are 21.1 sec, 21.2 sec, and 21.3 sec
The average velocity has two parts to it: The average speed and the average direction. The average speed is: (the distance you travel between 0 and 3 seconds) divided by (3). The average direction is: the direction from (the place where you started at 0 seconds) to (the place where you finished at 3 seconds).
it's answer "c"
To find the average speed between time=0 and time=2, divide the distance traveled by the time (in this case 2 seconds).
what is the change in speed or velocity? average acceleration will be change in speed or velocity divided by time taken (4 seconds in ur case)
It depends, but the average is usually between 20 to 30 seconds.
To find average velocity, you need to know the displacement. If you knew displacement, average velocity would be found by: V = Displacement / time
The average interval was one plane every 45 seconds at the height of the blockade.
Average time would be about 15-16 seconds A good time would be 14 seconds 13 seconds or less is amazing (girls) Average: 14-15 seconds Good: 13 seconds Amazing: 12 or less (would get you into States) (boys)
The distance, expressed in inches, is(1.2) x (the particle's average speed, in feet per minute) .
2.6