00:03
We have a person who's recklessly driving when they're going from 60 to 30.
00:07
It's basically an acceleration problem.
00:09
It's a negative acceleration because the factor slowing down, but it still is essentially acceleration program.
00:17
The equation is v2 minus v1 over time.
00:20
They start at 60 miles an hour, and then when they're finished with the braking process, they're at 30 miles an hour.
00:26
They do all of this within a three -second time interval.
00:30
So essentially what we're looking at is 60 miles an hour.
00:33
Subtract from it 30 miles an hour and it's over three seconds.
00:36
So i get 60 minus 30, that's 30 miles per hour, and then i have time in seconds.
00:41
So what i'm going to do is convert miles per hour into seconds, at least the time interval part of it.
00:49
So every hour there's 60 seconds.
00:51
I can then eliminate or cross out this similar unit of hour and it becomes in miles per seconds.
01:09
So it's 30 miles for every 60 seconds over the 3.
01:17
Oops.
01:22
I see an error...