the cars in a soapbox derby have no engines; they simply coast downhill. which of the following design criteria is best from a competitive point of view? the car's wheels should a. b. have large moments of inertia be massive c. be hoop-like wheels rather than solid disks have small moments of inertia 5. a mouse is initially at rest on a horizontal turntable mounted on a frictionless, vertical axle. as the mouse begins to walk clockwise around the perimeter, which of the following statements must be true of the turntable? it also turns clockwise it turns counterclockwise with the same angular velocity as the mouse it remains stationary it turns counterclockwise because angular momentum is conserved a. d.