Q. A toy train is pushed forward and released at xi = 1.8 m with a speed of 2.0 m/s. It rolls at a steady speed for 1.7 s, then one wheel begins to stick. The train comes to a stop 6.0 m from its starting point. What is the train's acceleration after its wheel begins to stick?
Q. A passenger van has an outer wheel base width of 2.00 m. Its center of gravity is equidistant from the sides, and positioned 1.20 m above the ground. What is the maximum sideways angle at which it can be inclined without tipping over?