00:01
Hello students in this question velocity time graph is given we have to calculate the force acting on the particle in the region oa as well as bc.
00:14
Here the graph given in this format so in this region we have to calculate the force.
00:28
We know that force is equal to mass into acceleration.
00:32
Mass of the particle is given that is 5 kg then acceleration is given by the acceleration is given by change in velocity by time taken.
00:43
So change in velocity is nothing but final velocity minus initial velocity.
00:48
Now we are calculating force for the region oa.
00:53
Final velocity is at this point which is given as 40 meter per second minus initial velocity is at initial point that is zero by time taken is given by from this distance which is two seconds.
01:14
By this calculation we take force as 100 newton.
01:18
Similarly, by calculating force for bc here at ec, initial velocity is 40 and the final velocity is 0.
01:31
Time 10 is here 8 and 10 is given.
01:34
In between this point we get 8 .5.
01:38
So difference between them 10 minus 8 .5 is 1 .5, therefore time taken is 1 .5...