00:01
Hello and welcome to this video solution of new mudded.
00:04
Now here you have to explain the concept of conservation of energy using the example of a motorcycle.
00:09
So here it is given that a motorcycle and a rider have a combined mass of 360 kgs.
00:16
The wheels are having a mass of mw that is 20 kg.
00:22
Diameter is given as 470 mm.
00:28
The radius of gyration k which is 200 mm.
00:33
The rider accelerates from the initial speed of 5 m per second to final speed of 25 m per second over a distance of 100 m climbing up a hill of slope 1 in 20.
00:49
The average resistance fr is 120 n.
00:54
So here you have to explain the concept of conservation.
00:59
So here what we see is that now here let's say this is the hill it climbed.
01:07
Initially the rider was moving with the speed of u.
01:11
And then at the final spot or maybe what i can do is initially sort of at the point of start it was moving with u and then it moved with v.
01:29
So what happened in and also it is.
01:31
Moving against the force of the resistance fr.
01:36
Right.
01:36
And also there will be a component of weight that will be act downwards.
01:41
Right.
01:42
So obviously here what we see is that the energy is the change in kinetic energy or maybe what i can do is i can name point one and point two the final point.
01:52
So at point one the energy is only kinetic half m u squared...