1.A skydiver accelerates from 20 m/s to 40 m/s in 2 seconds. What is the skydiver’s average acceleration?
2.A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?
3.Calculate the acceleration of a car from rest that travels at 24 m/s due east in 30 s.
4.A truck’s speed increases from 12 m/s to 35 m/s in 30 s. It travels in only one direction. Find the acceleration