00:01
Hello, here in question c, we have to determine average velocity and average acceleration.
00:06
Let's start with the average velocity.
00:23
Now let's calculate average acceleration.
00:26
And here i believe we have to use a different graph, which is on the right, and from here that's the difference between 8 meters per second and 8 meters per second, divided by 4 seconds, which is 0 meters per square second.
00:41
Now let's move on to question d.
00:44
Here x is dictated by the following equation.
00:52
Now we have to determine average velocity for the given interval.
00:58
Let's first calculate x at 1 second and at 3 seconds.
01:25
That's 45 meters.
01:28
Now we can find the average velocity.
01:40
That's 18 meters per second.
01:43
Now we have to determine instantaneous velocity, which is x prime, or 8, t plus 2...