Correct Answer:
Option A - The speed of an object moving in a certain direction is called velocity in scientific terminology. This is a vector quantity, it depends on the displacement. While speed is a scalar quantity, it depends on the distance. The unit of velocity is meter / second.
A. The speed of an object moving in a certain direction is called velocity in scientific terminology. This is a vector quantity, it depends on the displacement. While speed is a scalar quantity, it depends on the distance. The unit of velocity is meter / second.