A race car is traveling at 67 m/s but slows down at -9 m/s2 for 4 seconds. What is his new velocity?

i guess it’s a and b

powerful computers now, not then

be subject to a force andchange its motion

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.