The bike is moving at a speed of 4 m/s. The backpack is solid cuboid and its position is on bike saddle where it is fixed. It has amass of 10 kg and dimensions of backpack are: height h=0.17m, width w=0.22m and depth d=0.29m. The person driving the bike press hard the front brake so the front wheel is stuck and there is no motion in front wheel and rear wheel starts to lift of the ground. Both bike and backpack starts to rotate around point A which is in contact with the ground. The distance between point A and bike saddle is 1.1 meters. a)Calculate the moment of inertia around point A where wheel is in contact with the ground. b)Calculate the kinetic energy and work done when front brake is applied c)Calculate power - Write neatly with explanations so every part is understandable. Include free body diagrams.

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Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.