A toy car is driven by a torsional spring as shown. The drive wheel is a 750 gram solid disk 150 mm in diameter. The body of the car has a mass of 150 grams, and the mass of the front wheels may be neglected. The torsional spring exerts a moment on the drive wheel of M = kθwhere k= 0.01 N-m/rad and θis in radians. Determine the maximum speed of the car if is starts from rest with the spring wound up 8 revolutions. Assume that the rear wheel rolls without slip and that the spring disengages when θ= 0 degrees.T1+ Vg1+ Ve1+ U1-2= T2
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