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# In which case is the instantaneous and average velocities nearly the same? quite different? explain why..?

i am taking physics gr 11 and i need an answer to that question ASAP plz....

this question is about this rocket..here is a picture of my graph..plz help!

the complete question is

compare the instantenous velocities that you calculated for times 7 s , 13 s , 21 s , and 25 s. with the average velocities for the intervals that inclused those times In which case is the instantaneous and average velocities nearly the same? quite different? explain why..

here is the picture of the graph http://123pichosting.com/viewer.php?id=9002untitle...

dude I am trying

### 3 Answers

- 4 years ago
Average speed is defined as half of the final speed. Velocity implies the direction . So to define average velocity with a moving object, let say an airplain for example whcih changes direction continuously,you have to add all the directions vectorialy which would give an average direction (the resultant sum of all directions) So the velocity average would be the average speed at an average direction. This yields a vector of which speed is the magnetude and the angle is the direction.

- Anonymous1 decade ago
nobody is going to help you unless you tr y