00:01
Okay, so here we have a velocity time graph, and we are asked what type of motion is represented by path o2a, and that is going to be straight line on a velocity time graph, therefore that is uniform acceleration.
00:17
So we can say for i, that is uniform acceleration.
00:24
Spell acceleration, there we go, acceleration.
00:28
Then for part i -i, we have what type of motion is represented by a, or ab, you can see it remains constant at six meters per second.
00:39
So this is uniform velocity, or uniform speed rather, uniform speed.
00:46
So that is option b.
00:49
For iii, we are asked, what is the acceleration of the body? so at this point, it's accelerating.
00:56
So it goes from zero to six meters per second in four seconds.
01:01
Acceleration is changing velocity over time.
01:04
So that's six over four, which is, 1 .5 meters per second squared.
01:10
So that is option a.
01:13
Then for part four, we're asked, was the retardation of the body or the slowing down of the body? well, we go from 6 down to 0 in 6 seconds, so 10 to 16...