00:01
So in this question we have a graph which can be seen on the right hand side of the screen so the first question pertaining to this graph is that what is the type of motion between o and a? between o and way we can see that the body is moving in a straight path and it has a same direction of velocity so we can say that the motion is linear motion linear motion as we know is the kind of motion in which the body has the same direction of velocity and moves in a straight straight line.
00:34
Now between point a and b we can say that the type of motion is that the body is at rest because we can see that the initial and final position of the body on even when the time is passing by the initial and final position remains the same we can say that the bodies are at rest.
00:51
In the third part of the question we are asked to find out what is the type of motion along bc and we can see here again the velocity is on the same direction and the body is moving again in the straight path so we can see say that along bc the type of motion is again linear motion now we'll move on to the fourth part so we need to find out what is the velocity of the body between o and a so between o and a the velocity will be the final position which is which in this case is 30 so it is 30 and the initial position minus 25 whole divided by the time taken which is 3 minus 0 per second or this will be equal to 25 divided by 3 meter per second or this is plus 8 .33 meter per second this is the answer now between the position a and b the velocity of the body will be equal to 0 meters per second because as we had observed between a and b the type of motion is that the bodies are dressed similarly the velocity between point b c would be the final position which is 0 so it's 0 minus so this is actually we'll make a correction here this would be 30 minus 0 not 25 here so it's 30 minus 5 not 25 now we can move on to the part of we were solving in which we have that so it will be here 5 minus 30 whole divided by 3 minus 0 meter per second or we get that along bc will have the velocity as minus of 8 .33 meter per second.
03:03
This velocity has a negative sign means that the speed of the body as a whole is decreasing during this motion.
03:10
Now in the second half of the question we have another graph which we can see on the right hand side.
03:15
So along path oa the body the type of motion is uniform acceleration.
03:23
This is because we can see that along the way.
03:24
The path oa the velocity of the body is constantly increasing at a uniform rate.
03:34
We'll erase this part...