(Chapter 02 P55 2.1 Kinematics with Constant Acceleration Learning Goal: To practice ProblemSolving Strategy 2.1 for constant acceleration problems. A car is traveling at a constant velocity of magnitude 110 when the driver notices a garbage can on the road in front of him. At that moment, the distance between the garbage can and the front of the car is d. A time tram after noticing the garbage can, the driver applies the brakes and slows down at a constant rate before coming to a haltjust before the garbage can. What is the magnitude of the car's acceleration after the brakes are applied? PROBLEMSOLViNG STRATEGY 2.1 Kinematics with constant acceleration MODEL: Model the object as having constant acceleration. VISUALJZE: Use different representations of the information in the problem. . Draw a pictorial representation. This helps you assess the information you are given and starts the process of translating the problem into symbols. - Use a graphical representation if it is appropriate for the problem. . Go back and forth between these two representations as needed. SOLVE: The mathematical representation is based on the three kinematic equations \"f5 = \"is 'l' asAty Sf 2 51+ 'UisAt + as (At)2, and v; = \"125 + 2asAs. - Use a: or y, as appropriate to the problem, rather than the generic s. . Replacei and f with numerical subscripts defined in the pictorial representation. REVIEW: Check that your result has the correct units and significant figures, is reasonable, and answers the question. Model Start by making simplifying assumptions appropriate for the situation. In this problem, the object of interest, the car, should be modeled as a particle. Visualize Learning Goal: To practice Problem-Solving Strategy 2.1 for constant acceleration problems. A car is traveling at a constant velocity of magnitude 110 when the driver notices a garbage can on the road in front of him. At that moment, the distance between the garbage can and the front of the car is d. A time tram after noticing the garbage can, the driver applies the brakes and slows down at a constant rate before coming to a haltjust before the garbage can. What is the magnitude of the car's acceleration after the brakes are applied? V Part A I Review V Below is a sketch of the situation described in this problem, along with four different motion diagrams. Which of these diagrams is the correct pictorial representation of the problem? Learning Goal: To practice ProblemSolving Strategy 2.1 for constant acceleration problems, A car is traveling at a constant velocity of magnitude 110 when the driver notices a garbage can on the road in front of him. At that moment, the distance between the garbage can and the front of the car is d. A time tram after noticing the garbage can, the driver applies the brakes and slows down at a constant rate before coming to a haltjust before the garbage can. What is the magnitude of the car's acceleration after the brakes are applied? V Part B I Review As an alternative to the pictorial representation shown above, you could consider using a graphical representation instead. Below are four velocityversustime graphs Which graph correctly represents the situation described in this problem? Au 1 C|v I OA OB Oc OD muest Answer D L L