 Alright guys, so here is another question, this is from kinematics chapter, so here there is a graph that is given and we are asked to find out whether such thing get observed in the nature or not, fine. Now let's see what is something which is not correct with respect to this graph, you can see that the position of the object, it has two positions at the same time, isn't it? There is time axis, why? Now at a particular time it has two locations which is not possible, okay that is point number one, two position at the same time, not possible and another problem with this graph is that the time should always increase, once you have gone to this much, let's say this is two hours, okay, then you can't decrease the time, getting it? So you are basically decreasing the time from two hours after some point it becomes half an hour, alright, so even that is not possible, so the change in time is less than zero in this graph, that is never possible, time should always increase that is delta t should always be greater than zero, fine, so that is the reason why because of these two reasons this particular thing is not observed in the nature, alright, so that's it for this particular question, we will come up with many more questions on kinematics and you can watch them, okay or in case you want to get in touch with us, please feel free to get in touch and we will be able to help you out with any doubts you might be having.