Part A The car\'s motion can be divided into three different stages: its motion
ID: 1773037 • Letter: P
Question
Part A The car's motion can be divided into three different stages: its motion before the driver realizes he's late, its motion after the driver hits the gas (but before he sees the police car), and its motion after the driver sees the police car. Which of the following simplifying assumptions is it reasonable to make in this problem? A. During each of the three different stages of its motion, the car is moving with constant acceleration. B. During each of the three different stages of its motion, the car is moving with constant velocity C. The highway is straight (i.e., there are no curves). D. The highway is level (i.e., there are no hills or valleys). Enter all the correct answers in alphabetical order without commas. For example, if statements C and D are correct, enter cD. Submit My Answers Give Up Incorrect; Try AgainExplanation / Answer
When the driver was unaware of how late he/she was, the car was at a constant velocity (zero acceleration). In the 2nd stage, the driver accelerates and in the final 3rd stage, the driver decelerates.
Therefore, options B and A cannot be good assumptions. C and D are fairly acceptable assumptions as leveled roads means constant velocity in 1st stage (which will not be possible in a curved road).