00:02
In this problem, it is given that the velocity of a car was read from its speedometer at 10 seconds intervals and recorded in the table.
00:17
Use the midpoint rule to estimate the distance traveled by car.
00:23
Right.
00:25
So what can we do here? here is a table given to us for time and velocity.
00:33
Know the midpoint rule has one rule that del t equals to given by b minus a by n all right so remember here we are using midpoint will with with five sub intervals remember this so for that n equals to where n is taken as five intervals okay right so it will be what hundred that is 100 means 100 t in second 100 seconds is given so 100 minus 0 it is given in the table divided by 5 so this will give me what this will give me 20 seconds right okay so now we need to calculate in r right because the velocity is given in miles per hour so we need to convert it into r okay so don't forget to do so so don't forget to do so so that's why i'm telling dality is divided by dality is in seconds.
01:46
Okay.
01:49
Then this should be divided by 3 ,600 seconds per hour, isn't it? because in 1 hour, 60 minutes are there.
01:59
And in one minute, it is 60 seconds are there, right? so for in all total, in an hour, 3 ,600 seconds are there, right? so this will give me what? this will be giving 20 seconds divided by 3 ,600 seconds per hour.
02:21
So this will give me 1 by 180r, isn't it? yes...