Question 2 Go Kart Track (AC1.1, 1.2, 3.1, 3.2, 5.1 & 5.2) Your go karts have a mass of 450kg and travel around a circular curve on a at, horizontal track at a radius of 42 m. c) Calculate maximum angular velocity at which the car can travel round the curve at a constant radius of 42 m. d) Calculate the maximum linear velocity. e) You decide that this is not nearly fast enough and decide to create a banked track of 120, what is the maximum linear velocity now? f) Describe qualitatively how this could change if a child were driving the kart. g) It is important that the karts can brake effectively. They use drum brakes where a solid circular drum of mass 4.0 kg and radius 0.15 m is rotating at an angular speed of 22 rad s'1 about an axis when a 'braking' torque is applied to it which brings it to rest in 5.8 s. Calculate i) its angular deceleration when the braking torque is applied. ii] the moment of inertia of the drum about the axis shown lmT2 12 iii) the resultant torque that causes it to decelerate