Are rocky fragments left over from the formation of the solar system about 4.6 billion years ago.
a. comets
b. asteroids
c. planets

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

What is "decrease in velocity" i need offering 60 !

Group of elements with the same number of valence electrons