Ello again. The problem states:(adsbygoogle = window.adsbygoogle || []).push({});

The figure shows the curve C traced by a particle with position vector r(t) at time t.

(a) Draw a vector that represents the average velocity of the particle over the time interval [3,3.2]

(b) Write an expression for the velocity v(3)

(c) Write an expression for the unit tangent vect0or T(3) and draw it.

http://img208.imageshack.us/img208/83/lastscan7jy.jpg [Broken]

I drew the vector, and in b, i think thats what they want but i'm not sure, and with C, i drew the Tagent vector t, but i'm not sure about how to write an epxression for unit vecotr T. THanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Curve C traced by a particle, did i draw these vectors right?

**Physics Forums | Science Articles, Homework Help, Discussion**