speeding car traveling at a constant velocity of 1.4×10^1?/?passes a police car initially at rest beside the roadway. If the police car with constant acceleration of 2.2 immediately pursues the speeding car, how much time is it before the police car is directly behind the speeding car? answer in seconds.

A car starts from rest, then accelerates at a constant rate over a distance of 80 m. It then immediately decelerates at a constant rate over a distance of 136 m. The entire trip lasts a total duration of 26.0 s. What were the magnitudes of the cars accelerations for the speedup and slowdown stages respectively?

@ 2 9. An object initially at rest experiences an acceleration of 1.90 m/s² for 6.50 s then travels at that constant velocity for another 9.90 s. What is the magnitude of the object's average velocity over the 16.4 s interval? m/s F2 10. A person is driving along a straight highway at a speed of 22.0 m/s when the traffic light which is 43.0 m ahead turns yellow. Because of his "reaction time", there is a delay of 0.15 s before the man steps on the brake. The car then slows with a deceleration of 4.20 m/s2. By how much distance does the driver miss the traffic light line? # 3 80 F3 $ 200 F4 m % 5 F5 ^ 6 Submit Assignment MacBook Air & 7 ◄◄ F7 CO * 8 DII FB ( F9 ) 0 A F10 F11 +11 = 4) 品 F12 } delete

A man drives a car at v1= 54mi/h and suddenly notices a truck at a distance d= 13.5 m in front of him. That truck is moving in the same direction at a constant velocity v2= 34 mi/h. In order to not collide the person in the car must reduce their speed to v2 in a time interval, by slamming the brakes. the driver can give the car a maximum acceleration of ax. assume the acceleration is constant and the motion is in the positive direction. so that ax<0.  1) if the driver just barely avoids collision what is the final distance between the car and the truck? 2) write  an expression for the distance Δx2 traveled by the truck in the time Δt, in terms of the quantities defined in the problem. 3) write an expression for the distance Δx1 traveled by the car in the time Δt, assuming the driver brakes as hard as they can.  4)Relate the total distance the car travels Δx1 to the distance the truck travels and the initial distance between them.  5)Find the acceleration of the car in terms of its…