When can instantaneous velocity equal average velocity during a 10-second trip?

[sammiyahc0]

The position of a particle moving in a straight line during a 10–second trip is s(t) = 3t2 − 3t + 5 cm.Find a time t at which the instantaneous velocity is equal to the average velocity for the entire trip

 

[adjacent]

Show us some attempt at least!

 

[sammiyahc0]

s'(t)=6t-3=6(10)-3=57s instantenous velocity but I don't know how to get average

 

[SteamKing]

Please don't post the same problem in different forums.

See, you've confused yourself because there may be different replies in your other post.

 

[sammiyahc0]

I still need help.

 

[haruspex]

s'(t)=6t-3=6(10)-3=57s instantenous velocity but I don't know how to get average

Average velocity is defined as change in position divided by time elapsed.

 

[Vanadium 50]

Please use this thread: https://www.physicsforums.com/showthread.php?t=711711