00:01
Hello everyone, in this given question we are given that there is a building whose height is 22 .5 meter.
00:07
Suppose this is the building and its height is 22 .5 meter.
00:12
Now there is a bucket.
00:14
Suppose this is the bucket full of concrete and we have to make it travel from here to here.
00:21
Let's say this is the final position of the bucket.
00:24
Now its initial velocity is zero and its final velocity is coming up.
00:30
Out to be 4 .5 meter per second.
00:35
Okay.
00:36
And we are also given with the mass of the bucket and the mass is given as 25 kg.
00:42
Now we have to find out the work which is done by the work and moving the bucket from this particular position to this particular position.
00:50
Okay, this thing we have to find out.
00:51
Now we will be applying work energy theorem which says that work done by all the forces is equal to change in kinetic energy.
00:58
Okay.
00:59
So there are two forces which will be doing...