A jetliner, traveling northward, is landing with a speed of 60.4 m/s. Once the jet touches down, it has 732 m of runway in which to reduce its speed to 6.88 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the direction of the plane's motion as positive).

A motorcycle starts at t = 0 from rest at x = 0 (the origin) and moves along a straight path (x-axis) with an acceleration of +2.8 m/s2. After travelling for 140 m, the rider slows down the motorcycle at 1.2 m/s2 (still going forward along the path) until its velocity is 16 m/s. At that point, he sees/hits a tree.(a)    Find the velocity and the time when the motorcycle reaches x = 140 m.(b)    How much time and how far does it take the rider to slow down the motorcycle from its velocity at x = 140 m to its final velocity of 16 m/s?(c)    Hence, find the distance between the origin and the tree.(d)    Sketch a well-labelled velocity-time graph from t = 0 to the time that the rider reaches the tree. Point out a relation between the graph and the answer in part (c)

Car A is traveling on a highway at a constant speed (VA)0 = 60 mi/h and is 380 ft from the entrance of an access ramp when car B enters the acceleration lane at that point at a speed (VB)0 = 15 mi/h. Car B accelerates uniformly and enters the main traffic lane after traveling 200 ft in 5 s. It then continues to accelerate at the same rate until it reaches a speed of 60 mi/h, which it then maintains. Determine the final distance between the two cars.

An object is moving with a constant acceleration in a straight line from Point A to Point B. The distance between the two points is 58 m, the time taken is At = 5.98 s, and the final speed of the object at Point B is 11.96 m/s. What is the initial speed of the object at Point A?