Question

pls solve this physics class 9 ​

Answer 1

Explanation:

the speed of something in a given direction.

"the velocities of the emitted particles"

Average velocity is the displacement of an object over time. To find the average speed of an object we divide the distance travelled by the time elapsed. We know that velocity is a vector quantity and average velocity can be found by dividing displacement by time.

the action of moving something from its place or position.

"vertical displacement of the shoreline"

Answer 2

Velocity refers to the rate of change of distance with respect to time. It is a vector quantity, which means that it has both - a direction and a magnitude. Average velocity refers to the average total displacement over the time of travel.