4. A car accelerates on a straight road from rest to 88 km/h in 6.5 s. What is the magnitude of its average acceleration? Your final units should be m/s.

2. An astronaut left the International Space Station to test a new space scooter. Her partner measures the following velocity changes, each taking place on a 10-second interval. What is the average acceleration in each interval (magnitude, algebraic sign, and direction)? Assume that the positive direction is to the right. (a) At the beginning of the interval, the astronaut is moving toward the right along the x-axis at 15.0m/s and,at the end of the interval, she is moving toward the right at 5.0m/s. (b) At the beginning, she is moving toward the left at 5.0m/s and, at the end, she is moving toward the left at 15.0m/s. (c) At the beginning, she is moving toward the right at 15.0m/s and,at the end, she is moving toward the left at 15.0m/s.

1. An airplane accelerates down a runway at 3.20m/s² for 32.8s until it finally lifts off the ground. Determine the distance traveled before takeoff.   2. What is the average velocity for an object if it travels 24.46m in 18.75s?

3. In Physics, the height of a free-falling object at a given time t is given by h = –16t² + v,t + h., where v, is the initial velocity, and h, is the initial height. A student throws a ball upward from a height of 48ft, initially at 32 ft/s. What is the maximum height of the ball?