Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2. Car 1 suddenly starts to brake with constant acceleration and stops in 18 m. At the instant car 1 comes to a stop, car 2 begins to brake with the same acceleration. It comes to a halt just as it reaches the back of car 1. v PartA What was the separation between the cars before they starting braking? Express your answer with the appropriate units. EAW)? Arc= ' Value Units V Part A The minimum stopping distance for a car traveling at a speed of 30 m/s is 70 m, including the distance traveled during the driver's reaction time of What is the minimum stopping distance for the same car traveling at a speed of 70 m /s ? 0.50 s. Express your answer with the appropriate units. ? C = 431.11 m Submit Previous Answers Request AnswerPart A A lead ball is dropped into a lake from a diving board 6.10 m above the water. After entering the water, it sinks to the bottom with a constant velocity How deep is the lake? equal to the velocity with which it hit the water. The Express your answer with the appropriate units. ball reaches the bottom 4.00 s after it is released. ? Value Units Submit Request Answerv ParlA A particle's velocity is described by the function _ 2 . . M 't 7t + 11 m/s, where t '5 In 5' How many turning points does the particle reach. Express your answer as an integer