The four-wheeler has a weight of 335 lb and a center of gravity at G₁, whereas the rider has a weight of 150 lb and a center of gravity at G₂. If the engine can develop enough torque to cause the rear wheels to slip, determine the largest coefficient of static friction between the rear wheels and the ground so that the vehicle will accelerate without tipping over. What is this maximum acceleration? In order to increase the acceleration, should the rider crouch down or sit up straight from the position shown? Explain. The front wheels are free to roll. Neglect the mass of the wheels in the calculation.

Transcribed Image Text:

G₁ -G₂ |—2 ft—1 ft2 ft- -2 B 2 ft 1 ft