A car traveling at 4.0 m/s accelerates uniformly for 5.0 seconds in order to pass another vehicle. It travels 120 m during the 5.0 s interval that it was accelerating. What was the car's speed at
the end of the acceleration period?
38 m/s
56 m/s
O 30 m/s
44 m/s

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation